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Author/Creator
- Geological Survey (U.S.)2
- Missouri. Division of Geology and Land Survey[remove]2
- Arkansas Geological Commission1
- Berendsen, Pieter1
- Blair, Kevin P.1
- Hayes, Timothy Scott1
- Kansas Geological Survey1
- Krizanich, Gary W.1
- Palmer, James R.1
- Seeger, Cheryl M.1