Stratigraphy and geologic history of the Montana group and equivalent rocks, Montana, Wyoming, and North and South Dakota
By: by J. R. Gill and W. A. Cobban.
Contributors: Cobban, William Aubrey, 1916- joint author.
Series: Geological Survey professional paper, 776; Geological Survey professional paper ;; 776.
Publisher: U.S. Govt. Print. Off.
Published: 1973
Place of publication: Washington
Language: eng
Number of pages: 37
Subjects: Geology, Stratigraphic -- Cretaceous.; Geology -- West (U.S.)
Notes: Bibliography: p. 36-37.