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Author
- Geological Survey (U.S.)47
- Nelson, W. John5
- Witkind, Irving Jerome, 1917-5
- Bayley, Richard W. (Richard William), 1919-4
- Chute, Newton E. (Newton Earl), 1907-19874
- McGrew, Laura W. (Laura Wenger), 1921-4
- Moore, Samuel L.4
- Drewes, Harald, 1927-3
- Hansen, Wallace R., 1920-3
- Kepferle, Roy Clark, 1926-3
- Moench, Robert Hadley, 1926-3
- Mudge, Melville Rhodes, 1921-3
- Seiders, Victor M.3
- Snyder, George L. (George Leonard), 1927-3
- Soister, Paul E.3
- Swadley, W. C.3
- Taylor, Alfred R.3
- Van Horn, Richard, 1920-3
- Amos, Dewey Harold, 1925-2
- Anderson, R. Ernest (Roy Ernest)2
