Author
Geological Survey (U.S.)
4,844
Geological Survey (U.S.),
2,660
U.S. Atomic Energy Commission
530
Colorado Geological Survey
225
SpringerLink (Online service)
148
Kentucky Geological Survey
134
U.S. Atomic Energy Commission,
130
California. Division of Mines and Geology
102
United States. National Park Service. Natural Resource Stewardship and Science,
89
Colton, Roger B. 1924-
84
Infobase,
84
Geological Society of America
74
Montana Bureau of Mines and Geology
70
New Mexico Geological Society. Annual Field Conference
69
United States. National Park Service
69
U.S. Atomic Energy Commission. Division of Raw Materials
68
Thornberry, Trista L.,
67
ScienceDirect (Online service)
62
United States. Bureau of Land Management
59
Hackman, Robert J.
53
Richmond, Gerald Martin, 1914-
52
United States. Bureau of Indian Affairs
49
Geological Survey of Wyoming
48
Drake, Avery Ala, 1927-
47
United States. Department of Energy
47
Scott, Glenn R., 1918-2012
46
Billingsley, George H.
45
University of Texas at Austin. Bureau of Economic Geology
44
Massachusetts. Department of Public Works
43
Natural Resource Program Center (U.S.),
43
United States. National Park Service. Geologic Resources Division,
43
Bryant, Bruce, 1930-
42
O'Sullivan, Robert Brett, 1923-
42
Michigan. Geological Survey Division
41
Nevada Bureau of Mines
41
Graham, John P.
40
United States. Agency for International Development
40
Dibblee, T. W. 1911-2004
39
Kansas Geological Survey
39
University of Wyoming. Department of Geology
39
Afghanistan. Department of Geological Survey
37
Evans, James George, 1938-
36
KellerLynn, Katie,
36
Witkind, Irving J. 1917-2008
36
Rocky Mountain Association of Geologists
35
Roehler, Henry W.
35
Cooperative Geological Mapping Program (U.S.)
34
Fullerton, David S.
34
Hedlund, David Carl, 1924-
33
Detterman, J. S.
32
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