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Author/Creator
- Geological Survey (U.S.)3
- Richmond, Gerald Martin, 1914-3
- Christiansen, Ann Coe2
- Oklahoma Geological Survey2
- Denne, Jane E.1
- Kansas Geological Survey1
- Luza, Kenneth V.1
- Missouri. Division of Geology and Land Survey1
- University of Texas at Austin. Bureau of Economic Geology1
- University of Texas. Bureau of Economic Geology1
- Weide, David L.1
- Whitfield, John William, 1932-1