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Author/Creator
- Geological Survey (U.S.)3
- Briggs, P. H. (Paul Hercal), 1947-1
- Chin, David A.1
- Kansas. Department of Health and Environment1
- Lawrence, Errol P.1
- Metropolitan Dade County (Fla.). Department of Environmental Resources Management1
- South Florida Water Management District (Fla.)1
- Spruill, T. B.1
- United States. Congress. House. Committee on Small Business. Subcommittee on Environment and Labor1
- Wanty, Richard B.1