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Author/Creator
- Geological Survey (U.S.)10
- Southwest Florida Water Management District (Fla.)4
- Henderson, S. E.2
- Stoker, Yvonne E.2
- United States. Environmental Protection Agency2
- Adams, D. Briane1
- Adolphson, D. G. (Donald G.), 1928-19901
- Anderson, H. W.1
- Arizona. Department of Water Resources1
- Belles, Roger G.1
- British Geological Survey1
- Bufkin, Don1
- Hahn, Mary Ellen1
- Hayes, R. D.1
- Laney, R. L.1
- Martin, Edward H.1
- NetLibrary, Inc1
- New York (State). Department of Environmental Conservation1
- Reynolds, Richard J.1
- Ruhl, J. F.1