APA (7th ed.) Citation

Fremont, J. C., Torrey John, & Hall, J. (1966). Report of the exploring expedition to the Rocky Mountains. University Microfilms.

Chicago Style (17th ed.) Citation

Fremont, John Charles, Torrey John, and James Hall. Report of the Exploring Expedition to the Rocky Mountains. Ann Arbor [Mich.]: University Microfilms, 1966.

MLA (9th ed.) Citation

Fremont, John Charles, et al. Report of the Exploring Expedition to the Rocky Mountains. University Microfilms, 1966.