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Organization (as author)
- Oxford University Press51
- Organisation for Economic Co-operation and Development48
- Adam Matthew Digital (Firm)43
- Alexander Street Press38
- ProQuest (Firm)38
- William S. Hein & Company32
- Gale (Firm)28
- Chadwyck-Healey, Inc.20
- EBSCO Publishing (Firm)18
- ProQuest Information and Learning Company18
- National Archives (Great Britain)17
- Institute for Scientific Information16
- Library of Congress16
- Thomson Reuters15
- East View Publications13
- H.W. Wilson Company13
- United States. Environmental Protection Agency13
- National Institute of Standards and Technology (U.S.)12
- University of Chicago12
- British Library11
