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Author/Creator
- Geological Survey (U.S.)7
- Basalt (Colo.)1
- Elliott, John G. (John Grant), 1951-1
- Femmer, Suzanne R.1
- Indianapolis (Ind.). Office of Environmental Services1
- Iowa Waste Reduction Center1
- Johnson, Carole D.1
- Lake Delhi Association1
- Missouri. State Emergency Management Agency1
- Moring, J. Bruce (James Bruce), 1959-1
- Richards, Joseph M.1
- Schnoebelen, Douglas J.1
- Southard, Rodney E.1
- United States. National Park Service1
- University of Connecticut1
- Voelker, David C.1