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Author
- Geological Survey (U.S.)141
- Geological Survey of Canada14
- Drewes, Harald, 1927-2
- Krushensky, R. D.2
- M'Gonigle, John W.2
- Rogers, C. L. (Cleaves L.), 1916-2
- Seiders, Victor M.2
- Van Horn, Richard, 1920-2
- Arkansas Geological Survey1
- Beach, David K. (David Kent), 1951-1
- Brosgé, William Peters, 1921-1
- Cross, Aureal T.1
- Dover, James H.1
- Flint, Norman K. (Norman Keith), 1921-1
- Geological Survey (U.S.). Geologic Division1
- Gilman, Richard A.1
- Hardyman, Richard F.1
- Harwood, David S.1
- Hosman, R. L.1
- Kentucky Geological Survey1
