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Author
- Geological Survey (U.S.)381
- Osterkamp, W. R.8
- Hackman, Robert J.3
- Cooley, M. E. (Maurice E.)2
- Detterman, J. S.2
- Drewes, Harald, 1927-2
- Hjalmarson, H. W.2
- Kister, Lester R.2
- Peterson, Fred, 1933-2
- United States. Department of Agriculture2
- Aldridge, B. N. (Byron Neil)1
- Anderson, Charles A. (Charles Alfred), 1902-19901
- Brown, S. G. (Stuart G.), 1922-1
- Cooper, John R. (John Roberts), 1907-1
- Cornwall, Henry Rowland, 1913-1
- Hayes, Philip Thayer, 1923-1
- Krieger, Medora Louise Hooper, 1905-19941
- Marshall, C. H.1
- Miller, Fred K.1
- Moore, Richard B. (Richard Beresford), 1945-1
