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- Fuller, H. Kit✖[remove]21
- Geological Survey (U.S.)20
- Eister, Margaret F.15
- McIntosh, Willard L.15
- Clarke, Paul F.5
- Dodd, Kurt5
- Gunnells, Gregory B.2
- Sparks, Delores M.2
- Colton, Roger B. (Roger Burnham), 1924-1
- France, Ann, 1926-1
- Geological Survey (U.S.), issuing body1
- Wiesnet, Elizabeth A.1
- Williams, Van S.1