APA (7th ed.) Citation

Smedes, H. W. (1966). Geology and igneous petrology of the northern Elkhorn Mountains, Jefferson and Broadwater Counties, Montana. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Smedes, Harry W. Geology and Igneous Petrology of the Northern Elkhorn Mountains, Jefferson and Broadwater Counties, Montana. Washington: United States Department of the Interior, Geological Survey, 1966.

MLA (9th ed.) Citation

Smedes, Harry W. Geology and Igneous Petrology of the Northern Elkhorn Mountains, Jefferson and Broadwater Counties, Montana. United States Department of the Interior, Geological Survey, 1966.