Author
Geological Survey (U.S.)
103
Montana Bureau of Mines and Geology
19
Berg, Richard B., 1937-
17
Billings Geological Society. Field Conference
10
Geological Survey (U.S.),
10
Perry, Eugene S. 1892-1968
10
Tysdal, Russell G.
10
U.S. Atomic Energy Commission
10
Lawson, D. C.
7
Cressman, Earle Rupert, 1923-
5
Harrison, Jack Edward, 1924-
5
Sahinen, Uuno M. 1906-
5
Sando, William Jasper
5
U.S. Fish and Wildlife Service
5
United States. Bureau of Land Management
5
Mudge, Melville R., 1921-2009
4
Ross, Clyde P. 1891-1965
4
United States. Bureau of Indian Affairs
4
United States. Bureau of Mines
4
Calkins, Frank C., 1878-1974
3
Chelini, J. M.
3
Harlan, Stephen S.
3
Hearn, B. C., Jr
3
Heinrich, E. William 1918-1991
3
Klepper, Montis Ruhl, 1915-
3
McClernan, Henry G.
3
Page, Norman J.
3
Roberts, Albert Eugene, 1921-
3
Ruppel, Edward Thompson, 1925-
3
Schmidt, Robert George
3
Slagle, Steven E.
3
Swanson, Rowena W.
3
United States. Bureau of Land Management. Butte District
3
Zimmerman, Everett A. 1927-
3
Becraft, George E. 1922-
2
Cobban, William A., 1916-2015
2
Dobbin, C. E. 1892-1967
2
Du Bray, E. A.
2
Dyman, T. S.
2
Earhart, Robert L.
2
Feltis, R. D. 1930-
2
Geological Survey (U.S.). Water Resources Division
2
Gude, Arthur J. 1917-
2
Hanna, William F., 1938-
2
Howland, A. L. 1908-1978
2
Loughlin, G. F. 1880-1946
2
McMurtrey, R. G.
2
Montana
2
Montana College of Mineral Science and Technology
2
Nelson, Willis H. 1920-2010
2
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