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Author/Creator
- Geological Survey (U.S.)49
- Tripp, R. B.4
- Elliott, James E.3
- Kelley, Karen D.3
- Zimbelman, David R.3
- Arkansas Geological Commission2
- Baker, Michael S.2
- Cannon, William F.2
- Church, S. E.2
- D'Agostino, John P.2
- Eros, J. M.2
- Gray, John E., 1956-2
- King, Harley D.2
- Klimasauskas, Ed.2
- Lesure, Frank Gardner, 1927-2
- Miller, Marti L.2
- Missouri. Division of Geology and Land Survey2
- Sutley, S. J.2
- West Virginia Geological and Economic Survey2
- Addicott, Warren O.1