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Author
- Geological Survey (U.S.)230
- Cater, Fred W. (Fred William), 1912-6
- Detterman, J. S.6
- Hackman, Robert J.5
- Marshall, C. H.5
- Miller, Calvin F.4
- Sable, V. H.4
- Bennett, H. S.3
- Orkild, Paul P.3
- Bates, C. E.2
- Bergquist, W. E.1
- Billings, Marland Pratt, 1902-19961
- Cass, John T.1
- Cattermole, J. Mark (John Mark), 1908-1
- Condon, W. H. (William H.)1
- Cornwall, Henry Rowland, 1913-1
- Dixon, G. H. (George Harvey), 1925-1
- Hemphill, William R. (William Ross), 1930-1
- Kent, Bion H. (Bion Huntley), 1925-1
- Knox, C. E. (Charles Eshelby), 1906-1
