Mississippian-Pennsylvanian shelf-to-basin transition : Ozark and Ouachita Regions, Oklahoma and Arkansas : guidebook for field trip 11, May 27-June 1, 1979, Ninth International Congress of Carboniferous Stratigraphy and Geology

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International Congress of Carboniferous Stratigraphy and Geology (9th : 1979 : Urbana, Ill.)

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