APA (7th ed.) Citation

Thornton, J. Q. (1973). Oregon and California in 1848. Arno Press.

Chicago Style (17th ed.) Citation

Thornton, J. Quinn. Oregon and California in 1848. New York: Arno Press, 1973.

MLA (9th ed.) Citation

Thornton, J. Quinn. Oregon and California in 1848. Arno Press, 1973.