APA (7th ed.) Citation

Jensen, F. S., & Varnes, H. D. (1964). Geology of the Fort Peck Area, Garfield, McCone and Valley Counties, Montana. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Jensen, Fred S., and Helen D. Varnes. Geology of the Fort Peck Area, Garfield, McCone and Valley Counties, Montana. Washington: United States Department of the Interior, Geological Survey, 1964.

MLA (9th ed.) Citation

Jensen, Fred S., and Helen D. Varnes. Geology of the Fort Peck Area, Garfield, McCone and Valley Counties, Montana. United States Department of the Interior, Geological Survey, 1964.