Author
Colton, Roger B. 1924-
Geological Survey (U.S.)
64
Montana Bureau of Mines and Geology
47
McGraw, J. P.
28
United States. Bureau of Land Management
20
Durst, S. L.
16
Bozeman, D. K.
12
Bush, Charles A.,
3
Fullerton, David S.,
3
Geological Survey (U.S.),
3
Montana Bureau of Mines and Geology,
2
Agard, Sherry S.
1
Bateman, A. Frank
1
Bush, Charles A.
1
Fullerton, David S.
1
Kanizay, Stephen P.
1
Lemke, Richard W. 1913-2003
1
Lindvall, Robert M. 1916-
1