The Devonian of Pennsylvania : Middle and upper Devonian /

Bibliographic Details
Corporate Author:	Pennsylvania. Bureau of Topographic and Geologic Survey
Other Authors:	Swartz, Frank McKim, 1899-, Cleaves, Arthur B. (Arthur Bailey), 1905-
Format:	Book
Language:	English
Published:	Harrisburg, Pa. : Department of Internal Affairs, Topographic and Geologic Survey, 1939.
Series:	Bulletin (Pennsylvania. Bureau of Topographic and Geologic Survey) ; G19.
Subjects:	Geology, Stratigraphic > Devonian. Geology > Pennsylvania. Paleontology > Devonian.

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