Author
United States. Bureau of Land Management
Geological Survey (U.S.)
6
Cannon, M. R.
1
Colorado. Mined Land Reclamation Division
1
Danielson, T. W.
1
Davis, Robert E., 1924-
1
Ferreira, Rodger F.
1
Gaggiani, Neville G.
1
Geological Survey (U.S.),
1
Hoxie, Dwight T.
1
Lambing, John H.
1
Lenfest, L. W.,
1
McClymonds, N. E.
1
Montana. Department of State Lands
1
Moreland, Joe A.
1
Sylla, Dean A.
1