APA (7th ed.) Citation

Spence, C. C. (1966). The American West: A source book. Crowell.

Chicago Style (17th ed.) Citation

Spence, Clark C. The American West: A Source Book. New York: Crowell, 1966.

MLA (9th ed.) Citation

Spence, Clark C. The American West: A Source Book. Crowell, 1966.