The Mississippian and Pennsylvanian (Carboniferous) systems in the United States /

Bibliographic Details
Format:	Government Document eBook
Language:	English
Published:	Washington : United States Department of the Interior, Geological Survey, 1979.
Series:	Geological Survey professional paper ; 1110-M-DD.
Subjects:	Geology > United States. Geology, Stratigraphic > Mississippian. Geology, Stratigraphic > Pennsylvanian. Geology. Geology, Stratigraphic. Mississippian Geologic Period. Pennsylvanian Geologic Period. Iowa. From 280 to 345 million years ago
Online Access:	https://purl.fdlp.gov/GPO/gpo89623

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