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Author
- Geological Survey (U.S.)6
- Klemic, Harry, 1920-5
- Cattermole, J. Mark (John Mark), 1908-4
- Englund, Kenneth John, 1923-4
- Ulrich, George E.4
- Geological Survey (South Africa)3
- Mudge, Melville Rhodes, 1921-3
- Santos, Elmer S.3
- Shawe, Fred R.3
- Amos, Dewey Harold, 1925-2
- Brown, C. Ervin (Clarence Ervin), 1925-2
- Dibblee, T. W. (Thomas Wilson), 1911-2
- Finch, Warren Irvin, 1924-2
- Finnell, Tommy L.2
- Gaskill, David L.2
- Greene, Robert C.2
- Hyden, Harold Julius, 1922-2
- Kehn, Thomas M.2
- Kepferle, Roy Clark, 1926-2
- Morris, Robert H.2
