Author
Geological Survey (U.S.)
451
United States. Bureau of Land Management
144
United States. Bureau of Land Management. Montana State Office
114
National Operations Center (U.S.)
98
Geological Survey (U.S.),
76
Montana Bureau of Mines and Geology
57
Colton, Roger B. 1924-
56
United States. Bureau of Land Management,
51
United States. Bureau of Land Management. Montana State Office,
50
National Operations Center (U.S.),
49
Feltis, R. D. 1930-
22
McGraw, J. P.
16
United States. Forest Service,
16
Luft, Stanley Jeremie, 1927-
13
National Science and Technology Center (U.S.)
12
Mudge, Melville R., 1921-2009
10
Bateman, Andrew F.
8
Bozeman, D. K.
8
Durst, S. L.
8
Northern Cheyenne Tribe of the Northern Cheyenne Indian Reservation, Montana
8
Roberts, Albert Eugene, 1921-
8
Schmidt, Robert George
8
Witkind, Irving J. 1917-2008
8
Lindvall, Robert M. 1916-
7
McLellan, Marguerite W.
7
Omang, R. J.,
7
U.S. Atomic Energy Commission
7
United States. Forest Service. Northern Region
7
Biewick, Laura H.
6
Colorado School of Mines. Research Institute
6
Culbertson, William Craven, 1919-
6
Erdmann, C. E. 1897-1971
6
Harrison, Jack Edward, 1924-
6
Kellogg, Karl S.
6
Omang, R. J.
6
Tysdal, Russell G.
6
U.S. Fish and Wildlife Service,
6
Whipple, James W.
6
Assiniboine and Sioux Tribes of the Fort Peck Indian Reservation, Montana
5
Gilbert, Francis P.
5
Kinoshita, W. T.
5
Leach, D. L.
5
Lutz, Gale A., 1939-
5
Robinson, G. D. 1918-
5
Agard, Sherry S.
4
Allen, Elizabeth G.
4
Balsley, J. R.
4
Becraft, George E. 1922-
4
Bergantino, R. N.
4
Davis, W. E. 1905-
4
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