Author
Geological Survey (U.S.)
77
Geological Survey (U.S.),
45
Cobb, Edward H. 1916-1983
16
Colorado Geological Survey
14
Elliott, G. S.,
9
Hessin, Thomas D., 1919-
9
Johnson, Bruce R.,
9
Southwest Florida Water Management District (Fla.)
6
United States. Environmental Protection Agency
5
Utah Geological Survey,
5
Crenshaw, G. L.,
4
Curtin, Gary C., 1935-
4
McDonald, Greg N.,
4
Mularoni, R. A.
4
Albuquerque (N.M.)
3
Anderholm, Scott K.
3
Bexfield, Laura M.
3
California. Division of Mines and Geology
3
Casey, George D.
3
Day, Gordon W.,
3
Everman, W. K.,
3
Geological Society of America
3
Maslowski, M. G.,
3
Mississippi. Bureau of Land and Water Resources
3
New York (State). Department of Environmental Conservation
3
Reynolds, Richard J.
3
Thorson, Jon P.
3
Arkansas Soil and Water Conservation Commission
2
Callahan, J. A.,
2
Carlson, Paul R. 1933-
2
Castleton, Jessica J.,
2
Colorado Geological Survey,
2
Colorado. Division of Minerals and Geology,
2
Decade of North American Geology Project
2
East, Jeffery W.
2
Elliott, Ashley,
2
Engineering Enterprises
2
Giraud, Richard E.,
2
Izbicki, John A.,
2
Kirkham, Robert M.
2
Langer, William H.
2
Madole, Richard F., 1936-
2
National Cooperative Geologic Mapping Program (U.S.),
2
New Jersey. Department of Environmental Protection
2
Rainbow Municipal Water District (Calif.)
2
Schaer, Jasper D.
2
South Florida Water Management District (Fla.)
2
SpringerLink (Online service)
2
Stone, J. Christopher,
2
United States. National Aeronautics and Space Administration
2
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