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Author
- Geological Survey (U.S.)114
- Miller, Todd S.11
- Muller, Ernest Hathaway, 1923-6
- Duigon, Mark T.4
- Iowa. Department of Natural Resources. Geological Survey Bureau3
- Price, Don, 1929-3
- Geological Survey (U.S.), cartographer2
- Lohman, Stanley William, 1907-2
- Nutter, Larry J.2
- Otton, E. G. (Edmond George), 1918-2
- Williams, James Frank, 1944-2
- Barr, G. L.1
- Cyprus. Tmēma Geōlogikēs Episkopēsēs.1
- Darden, Daphne1
- Dumeyer, John M.1
- Dunlap, L. E. (Lloyd E.)1
- Geological Survey (U.S.), cartographer, publisher1
- Glaser, John D.1
- Hahn, J.1
- Hendrickson, G. E. (Gerth Edison), 1916-1
