Author
Geological Survey (U.S.),
3
Asch, Theodore H.,
1
Bedrosian, Paul A., 1973-
1
Dugan, Jack T.,
1
Durum, W. H. 1917-1996,
1
Hobza, Christopher M., 1980-
1
Interior Missouri Basin Field Committee
1
Nace, Raymond L. 1907-1987,
1
Nebraska Environmental Trust
1
Peckenpaugh, J. M.,
1
University of Nebraska (Lincoln campus). Conservation and Survey Division
1
Upper Loup Natural Resources District (Neb.)
1