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Author
- Geological Survey (U.S.)298
- Hackman, Robert J.7
- Marshall, C. H.6
- Detterman, J. S.5
- Orkild, Paul P.5
- Pillmore, C. L., 1930-5
- Ray, Richard G. (Richard Godfrey), 1920-2
- Sable, V. H.2
- Colton, George Willis, 1920-1
- Condon, W. H. (William H.)1
- Hemphill, William R. (William Ross), 1930-1
- Kent, Bion H. (Bion Huntley), 1925-1
- Lindvall, Robert M. (Robert Marcus), 1916-1
- Miller, Calvin F.1
- Nichols, David R. (David Ryden), 1930-1
- Olson, A. B.1
