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Author
- Geological Survey (U.S.)165
- Hackman, Robert J.33
- Detterman, J. S.23
- Marshall, C. H.14
- Orkild, Paul P.13
- Sable, V. H.12
- Hose, Richard Kenneth, 1920-10
- Miller, Calvin F.9
- Rowley, Peter D.7
- Hemphill, William R. (William Ross), 1930-6
- Kent, Bion H. (Bion Huntley), 1925-6
- Pillmore, C. L., 1930-6
- Bates, C. E.5
- Bennett, H. S.5
- Hansen, Wallace R., 1920-5
- Olson, A. B.5
- Baker, Arthur A. (Arthur Alan), 1897-19964
- Sargent, Kenneth A.4
- Tolbert, G. E.4
- Van Horn, Richard, 1920-4
