Stratigraphy and petrology of the Permian rocks of southwestern Montana
By: by Earle R. Cressman and Roger W. Swanson.
Contributors: Swanson, Roger Warren, 1914-; Geological Survey (U.S.)
Series: U.S. Geological Survey professional paper -- 313-C; Geology of Permian rocks in the western phosphate field
Publisher: U.S. Government Printing Office
Published: 1964
Place of publication: Washington, DC
Language: eng
Number of pages: 569
Subjects: Geology, Stratigraphic -- Permian.; Petrology -- Montana.; Geology -- Montana -- Maps.
Genres: Maps.
Notes: Bibliogr.

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