Author
Geological Survey (U.S.)
23
United States. Bureau of Land Management
13
United States. Bureau of Mines
13
Diggles, M. F.
4
Adrian, Betty M.
2
Bergquist, Joel R.
2
Evans, James George, 1938-
2
King, Harley D.
2
Pickthorn, William J.
2
Calzia, J. P.
1
Campbell, Harry W.
1
Causey, J. Douglas
1
Conrad, James E.
1
Erickson, M. S.
1
Fey, David L.
1
Goldfarb, R. J.
1
Hageman, P. L.
1
Hageman, Philip L.
1
Jones, Janet L.
1
Kiilsgaard, Thor H.
1
MacLeod, Norman S.
1
Malcolm, M. J.
1
McHugh, Edward L.
1
Minor, Scott A.
1
Sawlan, Michael G.
1
Sutley, S. J.
1
Taylor, Edward M., 1933-
1
Vander Meulen, Dean B.
1
Winters, Richard A.
1