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Author/Creator
- Arkansas Soil and Water Conservation Commission[remove]3
- Geological Survey (U.S.)3
- Gonthier, Gerard J. (Gerard Joseph), 1962-1
- Mahon, Gary L.1
- Petersen, James C. (James Carroll), 1952-1
- Poynter, David T.1
- Pugh, Aaron L.1
- Westerfield, Paul W.1