APA (7th ed.) Citation

Mudge, M. R. (1972). Pre-Quaternary rocks in the Sun River Canyon area, northwestern Montana. U.S. Govt. Print. Off.

Chicago Style (17th ed.) Citation

Mudge, Melville R. Pre-Quaternary Rocks in the Sun River Canyon Area, Northwestern Montana. Washington: U.S. Govt. Print. Off, 1972.

MLA (9th ed.) Citation

Mudge, Melville R. Pre-Quaternary Rocks in the Sun River Canyon Area, Northwestern Montana. U.S. Govt. Print. Off, 1972.