Dewey Classification 135,867
- 000s - Computer Science, Knowledge & Systems 6,378
- 100s - Philosophy 5,603
  - 100s - Philosophy 362
  - 110s - Metaphysics 355
  - 120s - Epistemology, Causation, Humankind 31
  - 130s - Parapsychology & Occultism 984
  - 140s - Philosophical Schools of Thought 2
  - 150s - Psychology 1,528
  - 160s - Logic 296
  - 170s - Ethics 480
  - 180s - Ancient, Medieval & Eastern Philosophy 507
  - 190s - Modern Western Philosophy 1,067
- 200s - Religion 4,564
- 300s - Social Sciences, Sociology & Anthropology 30,815
  - 300s - Social Sciences, Sociology & Anthropology 1,954
  - 310s - Statistics 649
  - 320s - Political Science 2,566
  - 330s - Economics 8,530
  - 340s - Law 2,254
  - 350s - Public Administration & Military Science 2,606
  - 360s - Social Problems & Social Services 1,635
  - 370s - Education 7,259
  - 380s - Commerce, Communications, Transport 2,733
  - 390s - Customs, Etiquette, Folklore 828
- 400s - Language 3,542
  - 400s - Language 338
  - 410s - Linguistics 168
  - 420s - English & Old English 536
  - 430s - German & Related Languages 863
  - 440s - French & Related Languages 338
  - 450s - Italian, Romanian & Related Languages 44
  - 460s - Spanish & Portugese Languages 159
  - 470s - Latin & Italic Languages 517
  - 480s - Classical & Modern Greek Languages 230
  - 490s - Other Languages 351
- 500s - Natural Sciences & Mathematics 25,960
  - 500s - Natural Sciences & Mathematics 2,636
  - 510s - Mathematics 1,239
  - 520s - Astronomy & Allied Sciences 513
  - 530s - Physics 1,262
  - 540s - Chemistry & Allied Sciences 2,061
  - 550s - Earth Sciences 11,544
  - 560s - Paleontology Paleozoology 429
  - 570s - Life Sciences, Biology 2,446
  - 580s - Plants (Botany) 1,502
  - 590s - Animals (Zoology) 2,489
- 600s - Technology 8,465
  - 600s - Technology 214
  - 610s - Medicine & Health 969
  - 620s - Engineering & Allied Operations 4,953
  - 630s - Agriculture & Related Technologies 1,149
  - 640s - Home & Family Management 149
  - 650s - Management & Auxiliary Services 42
  - 660s - Chemical Engineering 899
  - 670s - Manufacturing 53
  - 680s - Manufacture for Specific Uses 9
  - 690s - Buildings 30
- 700s - The Arts, Fine & Decorative Arts 605
- 800s - Literature & Rhetoric 28,046
  - 800s - Literature & Rhetoric 1,674
  - 810s - American Literature in English 5,395
  - 820s - English & Old English Literatures 8,022
  - 830s - Literatures of Germanic Languages 4,012
  - 840s - Literatures of Romance Languages 3,623
  - 850s - Italian, Romanian & Related Literatures 670
  - 860s - Spanish & Portuguese Literatures 1,795
  - 870s - Italic Literatures, Latin literature 959
  - 880s - Hellenic Literatures Classical Greek 989
  - 890s - Literatures of Other Languages 929
- 900s - History & Geography 22,410
  - 900s - History & Geography 723
  - 910s - Geography & Travel 6,336
  - 920s - Biography, Genealogy, Insignia 468
  - 930s - History of Ancient World to ca. 499 516
  - 940s - History of Europe 6,000
  - 950s - History of Asia, Far East 1,155
  - 960s - History of Africa 203
  - 970s - History of North America 5,803
  - 980s - History of South America 923
  - 990s - History of Other Areas 293
Government Document 963,285
- British 154
- California 4,847
- Federal 946,958
- International 765
- Other 11,597
LC Classification 1,038,761
- A - General Works 14,600
  - A - General Works 124
  - AC - Collections, Series, Collected Works 9,242
  - AE - Encyclopedias 145
  - AG - Dictionaries & Other General Reference Works 81
  - AI - Indexes 66
  - AM - Museums, Collectors & Collecting 275
  - AN - Newspapers 186
  - AP - Periodicals 1,161
  - AS - Academies & Learned Societies 807
  - AY - Yearbooks, Almanacs, Directories 1,772
  - AZ - History of Scholarship & Learning. The Humanities 260
- B - Philosophy, Psychology, Religion 75,248
  - B - Philosophy, Psychology, Religion 12,727
  - BC - Logic 716
  - BD - Speculative Philosophy 2,495
  - BF - Psychology, Parapsychology, Occult Sciences 9,581
  - BH - Aesthetics 564
  - BJ - Ethics, Social Usages, Etiquette 2,695
  - BL - Religions, Mythology, Rationalism 5,673
  - BM - Judaism 2,255
  - BP - Islam, Bahaism, Theosophy, etc. 2,184
  - BQ - Buddhism 1,012
  - BR - Christianity 5,205
  - BS - The Bible 6,769
  - BT - Doctrinal Theology 4,285
  - BV - Practical Theology 5,608
  - BX - Christian Denominations 13,476
- C - Auxiliary Sciences of History 5,536
  - C - Auxiliary Sciences of History 476
  - CB - History of Civilization 801
  - CC - Archaeology 1,283
  - CD - Diplomatics, Archives, Seals 517
  - CE - Technical Chronology, Calendar 72
  - CJ - Numismatics 425
  - CN - Inscriptions, Epigraphy 132
  - CR - Heraldry 206
  - CS - Genealogy 538
  - CT - Biography 1,073
- D - History (General) 72,336
  - D - History (General) 14,521
  - DA - Great Britain (History) 12,774
  - DAW - Central Europe (History) 31
  - DB - Austria, Liechtenstein, Hungary, Czechoslovakia, Czech Republic, Slovakia (History) 1,453
  - DC - France (History) 3,676
  - DD - Germany (History) 2,623
  - DE - Greco-Roman World (History) 310
  - DF - Greece (History) 1,355
  - DG - Italy, Malta (History) 3,171
  - DH - Low Countries, Belgium, Luxembourg (History) 318
  - DJ - Netherlands (Holland) (History) 185
  - DJK - Eastern Europe (General History) 212
  - DK - Russia, Soviet Union, Former Soviet Republics, Poland (History) 5,234
  - DL - Northern Europe, Scandinavia (History) 353
  - DP - Spain. Portugal (History) 1,892
  - DQ - Switzerland (History) 178
  - DR - Balkan Peninsula (History) 1,990
  - DS - Asia (History) 15,889
  - DT - Africa (History) 5,237
  - DU - Oceania (South Seas) (History) 878
  - DX - Romanies (Gypsies) (History) 83
- E - America, United States (General History) 21,654
  - E - America, United States (General History) 21,654
- F - United States, British, Dutch, French, Latin America (Local History) 18,704
  - F - United States, British, Dutch, French, Latin America (Local History) 18,686
- G - Geography, Atlases, Globes, Maps 35,578
  - G - Geography, Atlases, Globes, Maps 19,345
  - GA - Mathematical Geography, Cartography 320
  - GB - Physical Geography 1,534
  - GC - Oceanography 1,172
  - GE - Environmental Sciences 2,002
  - GF - Human Ecology, Anthropogeography 782
  - GN - Anthropology 4,551
  - GR - Folklore 805
  - GT - Manners & Customs 1,235
  - GV - Recreation. Leisure 3,828
- H - Social Sciences (General) 136,256
  - H - Social Sciences (General) 3,054
  - HA - Statistics 1,371
  - HB - Economic Theory, Demography 5,937
  - HC - Economic History & Conditions 15,767
  - HD - Industries, Land use, Labor 32,684
  - HE - Transportation & Communications 4,294
  - HF - Commerce 14,797
  - HG - Finance 11,892
  - HJ - Public Finance 2,682
  - HM - Sociology 5,234
  - HN - Social History & Conditions 3,776
  - HQ - Family, Marriage, Gender & Sexuality 12,811
  - HS - Societies: Secret, Benevolent, etc. 318
  - HT - Communities, Classes, Races 3,807
  - HV - Social Pathology, Social & Public Welfare, Criminology 15,231
  - HX - Socialism, Communism, Utopias, Anarchism 2,667
- J - Political Science (Legislative & Executive papers) 28,085
  - J - Political Science (Legislative & Executive papers) 1,111
  - JA - Political Science (General) 1,714
  - JC - Political Theory 5,334
  - JF - Political Institutions & Public Administration (General) 1,793
  - JJ - Political Institutions & Public Administration (North America) 3
  - JK - Political Institutions & Public Administration (U.S.) 3,675
  - JL - Political Institutions & Public Administration (Canada, Latin America) 1,140
  - JN - Political Institutions & Public Administration (Europe) 2,667
  - JQ - Political Institutions & Public Administration (Asia, Africa, Australia, Pacific Area) 2,025
  - JS - Local Government, Municipal Government 938
  - JV - Colonies & Colonization, Emigration & Immigration 2,091
  - JX - International Law 2,365
  - JZ - International Relations 3,231
- K - Law 46,983
  - K - Law 13,026
  - KB - Religious Law (General) 37
  - KBM - Jewish Law 101
  - KBP - Islamic Law 163
  - KBR - History of Canon law 253
  - KBS - Canon law of Eastern churches 6
  - KBT - Canon law of Eastern Rite Churches in Communion with the Holy See of Rome 2
  - KBU - Law of the Roman Catholic Church. The Holy See 350
  - KD - Law of England & Wales 4,742
  - KDC - Law of Scotland 761
  - KDE - Law of Northern Ireland 3
  - KDG - Law of Isle of Man, Channel Islands 3
  - KDK - Law of Ireland (EIRE) 105
  - KDZ - Law of America, North America 97
  - KE - Law of Canada 527
  - KEA - Law of Alberta 17
  - KEB - Law of British Columbia 25
  - KEM - Law of Manitoba 14
  - KEN - Law of New Brunswick, Newfoundland, Northwest Territories, Nova Scotia 45
  - KEO - Law of Ontario 54
  - KEP - Law of Prince Edward Island 3
  - KEQ - Law of Quebec 66
  - KES - Law of Saskatchewan 5
  - KEY - Law of Yukon Territory 2
  - KF - Law of the U.S. 12,540
  - KFA - Law of Alabama, Alaska, Arizona, Arkansas 113
  - KFC - Law of California, Colorado, Connecticut 1,059
  - KFD - Law of Delaware, District of Columbia 55
  - KFF - Law of Florida 49
  - KFG - Law of Georgia 39
  - KFH - Law of Hawaii 63
  - KFI - Law of Idaho, Illinois, Indiana, Iowa 200
  - KFK - Law of Kansas, Kentucky 90
  - KFL - Law of Louisiana 81
  - KFM - Law of Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana 364
  - KFN - Law of Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota 596
  - KFO - Law of Ohio, Oklahoma, Oregon 99
  - KFP - Law of Pennsylvania 114
  - KFR - Law of Rhode Island 13
  - KFS - Law of South Carolina, South Dakota 61
  - KFT - Law of Tennessee, Texas 110
  - KFU - Law of Utah 23
  - KFV - Law of Vermont, Virginia 103
  - KFW - Law of Washington, West Virginia, Wisconsin, Wyoming 103
  - KFX - Law of Individual U.S. cities 204
  - KFZ - Law of Northwest Territory, Confederate States of America 10
  - KG - Law of Latin America 136
  - KGA - Belize 2
  - KGB - Law of Costa Rica 21
  - KGC - Law of El Salvador 28
  - KGD - Law of Guatemala 38
  - KGE - Law of Honduras 21
  - KGF - Law of Mexico 301
  - KGG - Law of Nicaragua 22
  - KGH - Law of Panama, Panama Canal Zone 14
  - KGJ - Law of Caribbean area (General), Anguilla 8
  - KGK - Law of Antigua and Barbuda, Aruba 1
  - KGL - Law of Bahamas, Barbados, British Leeward Islands, British Virgin Islands, British West Indies, British Windward Islands, West Indies (Federation) 22
  - KGM - Law of the Cayman Islands 1
  - KGN - Law of Cuba 76
  - KGP - Law of Curaçao, Dominica 1
  - KGQ - Law of the Dominican Republic 11
  - KGR - Law of Dutch Leeward Islands, Dutch West Indies (Netherlands Antilles), Dutch Windward Islands, French West Indies, Grenada 1
  - KGS - Law of Haiti 88
  - KGT - Law of Jamaica, Martinique, Montserrat 5
  - KGV - Law of Puerto Rico 9
  - KGX - Law of Trinidad and Tobago 1
  - KGZ - Law of Virgin Islands of the United States 2
  - KH - Law of South America 30
  - KHA - Law of Argentina 146
  - KHC - Law of Bolivia 38
  - KHD - Law of Brazil 78
  - KHF - Law of Chile 72
  - KHH - Law of Colombia 189
  - KHK - Law of Ecuador 47
  - KHN - Law of Guyana 11
  - KHP - Law of Paraguay 21
  - KHQ - Law of Peru 98
  - KHS - Law of Suriname 1
  - KHU - Law of Uruguay 41
  - KHW - Law of Venezuela 40
  - KIA - Law of indigenous peoples of the Americas 1
  - KIE - Law of indigenous peoples: United States (General) 11
  - KIF - Law of indigenous peoples: United States—Northeast Atlantic 3
  - KIG - Law of indigenous peoples: United States—South 16
  - KIH - Law of indigenous peoples: United States—North Central 36
  - KIK - Law of indigenous peoples: United States—New Southwest 3
  - KJ - History of law: Europe 71
  - KJA - Roman Law 383
  - KJC - Europe: Regional Comparative & Uniform Law 465
  - KJE - Europe: Regional Organization & Integration 757
  - KJG - Law of Albania 3
  - KJH - Law of Andorra 1
  - KJJ - Law of Austria 51
  - KJK - Law of Belgium, Bosnia and Hercegovina (Federation), Republika Srpska 25
  - KJM - Law of Bulgaria, Croatia (Kingdom), Croatia (1992- ) 9
  - KJN - Law of Cyprus 3
  - KJP - Law of Czechoslovakia (to 1993), Czech Republic (1993- ) 23
  - KJR - Law of Denmark 8
  - KJS - Law of Estonia 5
  - KJT - Law of Finland 11
  - KJV - Law of France 321
  - KJW - Law of French Regions, Provinces, Departments 7
  - KK - Law of Germany 388
  - KKA - Law of East Germany 5
  - KKB - Law of German states and provinces (A-Pr) 11
  - KKC - Law of German states and provinces (Ps-Z) 7
  - KKE - Law of Greece 6
  - KKF - Law of Hungary 37
  - KKG - Law of Iceland 15
  - KKH - Law of Italy, Kosovo 274
  - KKI - Law of Latvia 1
  - KKJ - Law of Liechtenstein, Lithuania 7
  - KKK - Law of Luxemburg, Macedonia (Republic) (1992- ), Malta 5
  - KKL - Law of Monaco, Montenegro 6
  - KKM - Law of the Netherlands 69
  - KKN - Law of Norway 8
  - KKP - Law of Poland 31
  - KKQ - Law of Portugal 17
  - KKR - Law of Romania 14
  - KKS - Law of San Marino, Serbia (Kingdom), Serbia (2006- ), Slovenia (1992- ) 3
  - KKT - Law of Spain 197
  - KKV - Law of Sweden 10
  - KKW - Law of Switzerland 35
  - KKX - Law of Turkey 37
  - KKY - Law of Ukraine 9
  - KKZ - Law of Yugoslavia. Serbia and Montenegro (to 2006) 16
  - KL - History of Law, The Ancient Orient 92
  - KLA - Law of Russia, Soviet Union 68
  - KLB - Law of Russia (Federation, 1992- ) 28
  - KLE - Law of Azerbaijan 3
  - KLF - Law of Belarus (Republic) 1
  - KLH - Law of Georgia (Republic) 2
  - KLM - Law of Moldova 1
  - KLN - Law of Russian S.F.S.R. (to 1991) 3
  - KLP - Law of Ukraine (1919-1991), Zakavkazskaia͡ Sots͡ialisticheskaia͡ Federativnaia͡ Sovetskaia͡ Respublika (to 1936) 3
  - KLR - Law of Kazakhstan 5
  - KLW - Law of Uzbekistan 1
  - KM - Law of Asia 17
  - KMC - Law of the Middle East, Southwest Asia: Regional comparative and uniform law 33
  - KMF - Law of Armenia (Republic), Bahrain 2
  - KMG - Law of Gaza 1
  - KMH - Law of Iran 20
  - KMJ - Law of Iraq 17
  - KMK - Law of Israel 62
  - KML - Law of Jerusalem 3
  - KMM - Law of Jordan, West Bank 9
  - KMN - Law of Kuwait 5
  - KMP - Law of Lebanon 3
  - KMQ - Law of Oman, Palestine (to 1948) 8
  - KMS - Law of Qatar 1
  - KMT - Law of Saudi Arabia 3
  - KMU - Law of Syria 3
  - KMV - Law of United Arab Emirates 4
  - KMX - Law of Yemen 6
  - KNC - Asia (South Asia. Southeast Asia. East Asia): Regional comparative and uniform law 93
  - KNE - Asia (South Asia. Southeast Asia. East Asia): Regional organization and integration 7
  - KNF - Afghanistan 24
  - KNG - Law of Bangladesh 6
  - KNH - Law of Bhutan 1
  - KNL - Law of Burma 5
  - KNM - Law of Cambodia 4
  - KNN - Law of China 58
  - KNP - Law of Taiwan 15
  - KNQ - Law of China (People's Republic, 1949- ) 266
  - KNR - Law of Hong Kong (to 1997) 39
  - KNS - Law of India 298
  - KNT - Law of India: States and union territories (A-L) 10
  - KNU - Law of India: States and union territories (M-Z) 14
  - KNV - Law of French Indochina. Indochina (Federation) 1
  - KNW - Law of Indonesia, East Timor 41
  - KNX - Law of Japan 89
  - KPA - Law of Korea. South Korea 48
  - KPC - Law of Democratic People's Republic of Korea. North Korea 4
  - KPG - Law of Malaysia. States of East and West Malaysia (1957- ) (Part 1) 13
  - KPH - Law of Malaysia: States of East and West Malaysia (1957- ) (Part 2) 2
  - KPJ - Law of Mongolia 4
  - KPK - Law of Nepal 4
  - KPL - Law of Pakistan 13
  - KPM - Law of the Philippines 128
  - KPP - Law of Singapore 4
  - KPS - Law of Sri Lanka 16
  - KPT - Law of Thailand 9
  - KPV - Law of Vietnam 6
  - KPW - Law of Vietnam (Republic). South Vietnam 3
  - KQ - Law of Africa 4
  - KQC - Africa: Regional comparative and uniform law 116
  - KQE - Africa: Regional organization and integration 4
  - KQG - Law of Algeria 7
  - KQK - Law of Botswana 2
  - KQP - Law of British Indian Ocean Territory, British Somaliland 1
  - KQT - Law of Burkina Faso 1
  - KQV - Law of Burundi 1
  - KQW - Law of Cameroon 8
  - KRB - Law of Central African Republic 1
  - KRC - Law of Chad 1
  - KRG - Law of Congo (Brazzaville) 2
  - KRK - Law of Djibouti 4
  - KRL - Law of East Africa Protectorate 1
  - KRM - Law of Egypt (United Arab Republic) 55
  - KRN - Law of Eritrea 1
  - KRP - Law of Ethiopia 6
  - KRU - Law of Gabon 1
  - KRX - Law of Ghana 18
  - KSA - Law of Guinea 1
  - KSE - Law of Equatorial Guinea, Ifni 3
  - KSH - Law of Côte d'Ivoire 1
  - KSK - Law of Kenya 35
  - KSL - Law of Lesotho 3
  - KSN - Law of Liberia 2
  - KSP - Law of Libya 5
  - KSR - Law of Madagascar 9
  - KSS - Law of Malawi 4
  - KSV - Law of Mauritius, Mayotte 6
  - KSW - Law of Morocco 6
  - KSX - Law of Mozambique 2
  - KSY - Law of Namibia 15
  - KTA - Law of Nigeria 29
  - KTD - Law of Rwanda 16
  - KTF - Law of Sao Tome and Principe 2
  - KTG - Law of Senegal 7
  - KTH - Law of Seychelles 2
  - KTJ - Law of Sierra Leone 1
  - KTK - Law of Somalia 1
  - KTL - Law of South Africa, Republic of 139
  - KTQ - Law of Sudan 8
  - KTR - Law of Swaziland 2
  - KTT - Law of Tanzania 9
  - KTU - Law of Togo 1
  - KTV - Law of Tunisia 6
  - KTW - Law of Uganda 17
  - KTX - Law of Congo (Democratic Republic) 1
  - KTY - Law of Zambia, Zanzibar (to 1964) 7
  - KTZ - Law of Zimbabwe 17
  - KU - Law of Australia 118
  - KUB - Law of Northern Territory 1
  - KUC - Law of New South Wales 36
  - KUD - Law of Queensland 17
  - KUE - Law of South Australia 6
  - KUF - Law of Tasmania 2
  - KUG - Law of Victoria 13
  - KUH - Law of Western Australia 5
  - KUQ - Law of New Zealand 24
  - KVB - Law of Pacific area jurisdictions: Regional comparative and uniform law: Australia and New Zealand 1
  - KVC - Law of Pacific area jurisdictions: Regional comparative and uniform law: Other Pacific area jurisdictions (Australasia, Oceania) 7
  - KVE - Law of Pacific area jurisdictions: Regional comparative and uniform law: Regional organization and integration. Pacific area cooperation 1
  - KVH - Law of American Samoa, British New Guinea (Territory of Papua) 2
  - KVN - Law of Fiji 2
  - KVQ - Law of Guam 14
  - KVR - Law of Kiribati (Including Gilbert, Phoenix, and Line Islands) 1
  - KWC - Law of Northern Mariana Islands 1
  - KWE - Law of Pacific Islands (Trust Territory) 1
  - KWH - Law of Papua New Guinea 7
  - KWL - Law of Pitcairn Island, Solomon Islands 1
  - KWQ - Law of Tuvalu 1
  - KWX - Law of Antarctica 10
  - KZ - Law of Nations 2,675
  - KZA - Law of the sea 183
  - KZD - Law of outer space 53
- L - Education 24,907
  - L - Education 5,231
  - LA - History of Education 2,002
  - LB - Theory & Practice of Education 10,368
  - LC - Special Aspects of Education 5,792
  - LD - Individual Educational Institutions: United States 600
  - LE - Individual Educational Institutions: America (except U.S.) 114
  - LF - Individual Educational Institutions: Europe 628
  - LG - Individual Educational Institutions: Asia, Africa, Oceania 93
  - LH - College & School Magazines & Papers 37
  - LJ - Student Fraternities & Societies (U.S.) 29
  - LT - Textbooks 8
- M - Music 46,946
  - M - Music 35,256
  - ML - Literature on Music 10,425
  - MT - Musical Instruction & Study 1,260
- N - Visual Arts 19,211
  - N - Visual Arts 7,377
  - NA - Architecture 3,929
  - NB - Sculpture 734
  - NC - Drawing, Design, Illustration 1,150
  - ND - Painting 2,842
  - NE - Print Media 529
  - NK - Decorative Arts, Applied Arts, Decoration & Ornament 1,450
  - NX - Arts in General 1,201
- P - Philology, Linguistics (General) 133,136
  - P - Philology, Linguistics (General) 11,234
  - PA - Classical Philology, Greek & Latin Languages & Literatures 7,040
  - PB - Modern Languages, Celtic Languages 353
  - PC - Romance Philology & Languages 2,043
  - PD - Germanic Philology & Languages 235
  - PE - English Philology & Language 2,889
  - PF - West Germanic Philology & Languages 520
  - PG - Slavic, Baltic, Albanian Languages & Literatures 3,501
  - PH - Uralic, Basque Languages & Literatures 195
  - PJ - Oriental Philology & Literature 2,092
  - PK - Indo-Iranian Philology & Literature 571
  - PL - Languages & Literatures of Eastern Asia, Africa, Oceania 4,718
  - PM - Hyperborean, Indian & Artificial Languages 553
  - PN - Literature (General) & Journalism 17,062
  - PQ - French, Italian, Spanish & Portuguese Literature 15,106
  - PR - English Literature 30,149
  - PS - American & Canadian Literatures 21,322
  - PT - German & Germanic Literatures 3,124
  - PZ - Fiction & Children's Literature 10,456
- Q - Science (General) 165,894
  - Q - Science (General) 8,914
  - QA - Mathematics 73,287
  - QB - Astronomy 5,207
  - QC - Physics 20,652
  - QD - Chemistry 10,728
  - QE - Geology 4,963
  - QH - Natural History, Biology 15,068
  - QK - Botany 3,946
  - QL - Zoology 6,795
  - QM - Human Anatomy 734
  - QP - Physiology 11,722
  - QR - Microbiology 3,874
- R - Medicine (General) 67,569
  - R - Medicine (General) 10,621
  - RA - Public Aspects of Medicine 10,018
  - RB - Pathology 1,598
  - RC - Internal Medicine 26,949
  - RD - Surgery 4,872
  - RE - Ophthalmology 1,136
  - RF - Otorhinolaryngology 547
  - RG - Gynecology & Obstetrics 1,935
  - RJ - Pediatrics 3,098
  - RK - Dentistry 595
  - RL - Dermatology 615
  - RM - Therapeutics, Pharmacology 2,781
  - RS - Pharmacy & Materia Medica 1,580
  - RT - Nursing 1,045
  - RV - Botanic, Thomsonian, & Eclectic Medicine 12
  - RX - Homeopathy 77
  - RZ - Other Systems of Medicine 88
- S - Agriculture (General) 11,108
  - S - Agriculture (General) 3,352
  - SB - Plant Culture 3,373
  - SD - Forestry 1,227
  - SF - Animal Culture 1,803
  - SH - Aquaculture, Fisheries, Angling 1,130
  - SK - Hunting Sports 224
- T - Technology (General) 92,946
  - T - Technology (General) 5,665
  - TA - Engineering, Civil Engineering 20,227
  - TC - Hydraulic Engineering 1,209
  - TD - Environmental Technology, Sanitary Engineering 5,452
  - TE - Highway Engineering, Roads & Pavements 445
  - TF - Railroad Engineering & Operation 300
  - TG - Bridge Engineering 222
  - TH - Building Construction 1,553
  - TJ - Mechanical Engineering & Machinery 5,933
  - TK - Electrical Engineering, Electronics, Nuclear Engineering 26,472
  - TL - Motor Vehicles, Aeronautics, Astronautics 6,387
  - TN - Mining Engineering, Metallurgy 2,683
  - TP - Chemical Technology 7,988
  - TR - Photography 2,695
  - TS - Manufactures 3,426
  - TT - Handicrafts. Arts & Crafts 328
  - TX - Home Economics 1,962
- U - Military Science (General) 6,769
  - U - Military Science (General) 2,413
  - UA - Armies 1,966
  - UB - Military Administration 800
  - UC - Maintenance & Transportation 141
  - UD - Infantry 43
  - UE - Cavalry, Armor 26
  - UF - Artillery 158
  - UG - Military Engineering, Air Forces, Military Astronautics 1,101
  - UH - Other Military Services 118
- V - Naval Science (General) 1,748
  - V - Naval Science (General) 518
  - VA - Navies 214
  - VB - Naval Administration 63
  - VC - Naval Maintenance 17
  - VD - Naval Personnel 3
  - VE - Marines 58
  - VF - Naval Ordnance 13
  - VG - Minor Services of Navies 47
  - VK - Navigation, Merchant Marine 366
  - VM - Naval Architecture, Marine Engineering 448
- Z - Bibliography, Library Science, Information Resources 13,934
  - Z - Bibliography, Library Science, Information Resources 13,420
  - ZA - Information Resources (General) 514

Topic

Stanford University160,121
Excavations (Archaeology)147,612
Çatalhöyük Research Project144,427
Çatal Mound (Turkey)144,426
Materials Science101,275
Engineering schools58,210
College buildings40,871
BUSINESS & ECONOMICS40,054
Glaciers38,996
Ice sheets38,723
Teaching36,004
College students34,545
Outlines, syllabi, etc34,331
Bible31,820
Particle Accelerators30,896
HISTORY30,837
TECHNOLOGY & ENGINEERING30,736
POLITICAL SCIENCE30,102
SOCIAL SCIENCE28,904
MEDICAL26,333

Genre

Government document1,294,633
Technical report434,479
photographs427,513
Conference proceedings262,664
Early works to 1800163,462
Periodicals104,075
Congresses97,676
Streaming audio82,998
Maps73,128
History58,428
Thesis/Dissertation41,550
Atlas Map40,099
Remote-sensing images38,751
Conference papers and proceedings36,145
syllabi34,334
Fiction31,078
Biography28,927
Broadsides27,447
Sermons26,053
Map24,215

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Region

United States462,612
Turkey149,216
Great Britain96,958
England45,673
California43,788
Antarctica40,358
Europe31,240
France28,141
China27,045
Massachusetts20,837
New York (State)20,676
Italy18,160
Germany17,677
États-Unis17,098
Canada14,462
America14,448
Pennsylvania13,350
Ireland12,707
Spain12,630
Scotland11,880

more Region

Era

20th century43,958
18th century34,764
19th century31,565
17th century19,360
21st century11,862
Civil War, 1861-18659,023
Civil War, 1642-16498,062
Revolution, 1775-17837,195
20e siècle7,094
16th century4,747
To 15003,592
Colonial period, ca. 1600-17753,440
19e siècle3,433
2001-20102,900
1775-18652,872
1945-2,663
1991-20002,465
20002,302
War of 18122,235
sec. XIX2,203

more Era

Organization (as author)

United States. Dept. of Energy. Office of Scientific and Technical Information422,667
United States. Dept. of Energy153,447
Lawrence Berkeley National Laboratory107,318
United States. Dept. of Energy. Office of Basic Energy Sciences74,760
Adam Matthew Digital (Firm)54,025
Stanford University. School of Engineering44,249
Sandia National Laboratories40,284
Scott Polar Research Institute38,678
Danmarks tekniske højskole38,598
Geological Survey (U.S.)35,977
Los Alamos National Laboratory34,913
Oak Ridge National Laboratory34,525
ProQuest (Firm)33,700
Argonne National Laboratory25,521
Stanford News Service24,926
United States. National Nuclear Security Administration24,172
United States. Dept. of Energy. Office of Science21,589
Brookhaven National Laboratory19,318
Fermi National Accelerator Laboratory16,031
Lawrence Livermore National Laboratory15,061