Author
Geological Survey (U.S.),
2,300
Geological Survey (U.S.)
723
U.S. Atomic Energy Commission
94
U.S. Atomic Energy Commission,
58
Kentucky Geological Survey
48
United States. National Oceanic and Atmospheric Administration
32
Imlay, Ralph W. 1908-1989
29
Imlay, Ralph W. 1908-1989,
29
United States. National Aeronautics and Space Administration
29
Brazil. Departamento Nacional da Produção Mineral
27
California. Department of Water Resources
27
Geological Survey of Wyoming
25
National Science Foundation (U.S.)
25
United States. National Park Service
25
Gordon, Mackenzie, 1913-
24
University of Wyoming. Department of Geology
24
California. Division of Mines and Geology
22
Cobban, William A., 1916-2015,
21
Geological Survey of Pakistan
20
Scott, Kevin M., 1935-
19
United States. Agency for International Development
19
United States. Bureau of Indian Affairs
18
Cobban, William A., 1916-2015
17
Denny, Charles Storrow, 1911-
17
Hietanen, Anna Martta, 1909-
17
Ross, Reuben James, 1918-
17
United States Board on Geographic Names
16
Wolfe, Jack A., 1936-
16
Yochelson, Ellis L. 1928-2006,
16
Bergquist, Harlan R. 1908-
15
Hansen, Wallace R., 1920-
15
Nassau County (N.Y.). Department of Public Works
15
United States. Department of Energy
15
Burkham, D. E., 1927-
14
Cressman, Earle Rupert, 1923-
14
Douglass, Raymond C.
14
Drake, Avery Ala, 1927-
14
Miesch, A. T.
14
Ross, Donald C. 1924-
14
Shawe, Daniel R., 1925-
14
Colorado. Mining Industrial Development Board
13
Geological Survey (U.S.). Ground-water Resources Program
13
Harrison, Jack Edward, 1924-
13
Keefer, William R., 1924-
13
Michigan. Geological Survey Division
13
National Research Program (Geological Survey)
13
Olmsted, F. H. 1921-
13
Owens, James Patrick, 1924-
13
Plafker, George, 1929-
13
Robinson, Florence M. 1921-
13
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