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The stratigraphy and physical characteristics of the Simpson group,

By Decker, Charles Elijah,.
Norman, | Guthrie, Okla., Oklahoma printing co., 1931 .
112 p. incl. 1 illus., map, XV pl. (incl. fold. map in pocket) tables (1 fold.) 24 cm..

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Copper in the "red beds" of Oklahoma,

By Merritt, Clifford A..
Norman, 1940 .
[19] p. , At head of title: Oklahoma Geological survey. Robert H. Dott, director. | Mimeographed. 23 cm..

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Manganese deposits of Oklahoma,

By Merritt, Clifford A..
Norman, 1941 .
[36] p. , Reproduced from type-written copy. 23 cm..

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