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Geological Survey (U.S.)
7,960
Geological Society of America
823
International Geological Congress
717
Geological Survey of Canada
617
Geological Society of London
547
SpringerLink (Online service)
486
United States Bureau of Mines
414
ebrary, Inc
337
ProQuest (Firm)
334
American Geophysical Union
325
Illinois State Geological Survey
323
Edward Valauskas Collection of Dinosauriana
319
Geological Association of Canada
303
American Association of Petroleum Geologists
302
British Geological Survey
273
Geological Survey of Great Britain
263
U.S. Atomic Energy Commission
253
Geological Survey of India
252
Dana, James Dwight, 1813-1895
249
De Gruyter
213
Pennsylvania Bureau of Topographic and Geologic Survey
213
American Geological Institute
198
Mineralogical Association of Canada
196
France Service géologique national
189
National Science Foundation (U.S.)
189
William B. Provine Collection on Evolution and Genetics
178
Society of Economic Paleontologists and Mineralogists
174
Kentucky Geological Survey
166
Ohio Division of Geological Survey
165
West Virginia Geological and Economic Survey
160
Canadian Society of Petroleum Geologists
149
Museum of Practical Geology (Great Britain)
138
Oklahoma Geological Survey
136
France Bureau de recherches géologiques et minières
134
Lyell, Charles, Sir, 1797-1875
134
British Museum (Natural History)
131
Palaeontographical Society (Great Britain)
131
University of Texas at Austin Bureau of Economic Geology
131
Kansas Geological Survey
130
Geological Survey (South Africa)
126
SEPM (Society for Sedimentary Geology)
125
New England Intercollegiate Geological Conference Meeting
123
Kesling, Robert V (Robert Vernon), 1917-2005
122
EBSCOhost
118
British Museum (Natural History) Department of Geology
117
Jillson, Willard Rouse, 1890-1975
116
Edgar Fahs Smith Memorial Collection (University of Pennsylvania)
114
Fiske Icelandic Collection
113
Society of Economic Paleontologists and Mineralogists Pacific Section
111
Institut geologii i geofiziki (Akademii︠a︡ nauk SSSR)
109
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