APA (7th ed.) Citation

Thornton, J. Q. (1849). Oregon and California in 1848. Harper & Brothers.

Chicago Style (17th ed.) Citation

Thornton, J. Quinn. Oregon and California in 1848. New York: Harper & Brothers, 1849.

MLA (8th ed.) Citation

Thornton, J. Quinn. Oregon and California in 1848. Harper & Brothers, 1849.