APA (7th ed.) Citation

Smedes, H. W. (1966). Geology and igneous petrology of the northern Elkhorn Mountains, Jefferson and Broadwater Counties, Montana. U.S. Govt. Print. Off.

Chicago Style (17th ed.) Citation

Smedes, Harry W. Geology and Igneous Petrology of the Northern Elkhorn Mountains, Jefferson and Broadwater Counties, Montana. Washington: U.S. Govt. Print. Off, 1966.

MLA (9th ed.) Citation

Smedes, Harry W. Geology and Igneous Petrology of the Northern Elkhorn Mountains, Jefferson and Broadwater Counties, Montana. U.S. Govt. Print. Off, 1966.