Author
Geological Survey (U.S.)
6
Taylor, Richard B.
5
Scott, Glenn R., 1918-2012
3
Lindsey, David A.
2
Brock, M. R. 1922-
1
Clark, Reino F.
1
Geological Survey Board of Colorado
1
Harbour, R. L.
1
Johnson, Ross B., 1919-
1
Price, James N.
1
Singewald, Q. D. 1902-1987
1
Soulliere, Sandra J.
1
U.S. Atomic Energy Commission
1
Walz, David M.
1
Wood, G. H. (Cartographer)
1