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Organization (as author)
- Dibblee Geology Center274
- Stanford Geological Survey187
- Geological Survey (U.S.)82
- Thomas W. Dibblee, Jr. Geological Foundation72
- California. Division of Mines and Geology41
- U.S. Coast and Geodetic Survey36
- Sanborn Map Company27
- United States Coast Survey25
- Britton & Rey.24
- Los Padres National Forest (Calif.)16
- Santa Barbara Museum of Natural History16
- Angeles National Forest (Agency : U.S.)14
- California State Mining Bureau14
- Rand McNally and Company11
- United States. Forest Service11
- California Geological Survey9
- United States. Bureau of Soils7
- Automobile Club of Southern California6
- Britton & Co.6
- California Agricultural Experiment Station6
