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Author
- Price, Don, 1929-10
- Geological Survey (U.S.)4
- Van Horn, Richard, 1920-3
- Witkind, Irving Jerome, 1917-3
- Sargent, Kenneth A.2
- Baker, Arthur A. (Arthur Alan), 1897-19961
- Carter, Lorna M.1
- Crittenden, Max D.1
- Fuller, H. Kit1
- Hansen, Dan E.1
- Hansen, Wallace R., 1920-1
- Lindsey, David A.1
- Morris, H. T. (Hal Tryon), 1920-1
- Williams, Van S.1
