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Author/Creator
- Geological Survey (U.S.)11
- Hyer, Kenneth E. (Kenneth Edward)3
- Moyer, Douglas L.3
- Virginia. Department of Conservation and Recreation3
- Bayless, E. Randall (Edward Randall), 1961-1
- Ely, D. Matthew (David Matthew)1
- Finn, John T.1
- Harvey, Forrest Edwin, 1963-1
- Jobson, Harvey E.1
- Kay, Robert T.1
- Kuniansky, Eve L.1
- Kurzmack, Mark1
- LeCain, Gary D.1
- Leib, Kenneth J.1
- Loup City (Neb.)1
- Lu, Ning1
- Massachusetts. Department of Environmental Management1
- Mast, M. Alisa1
- Ohio. Department of Transportation1
- Risley, John C.1