Tohutoro APA (7th ed.)

Pomeroy, E. S., & Etulain, R. W. (2008). The American Far West in the twentieth century. Yale University Press.

Tohutoru Kātū Chicago (17th ed.)

Pomeroy, Earl S., me Richard W. Etulain. The American Far West in the Twentieth Century. New Haven: Yale University Press, 2008.

Tohutoro MLA (9th ed.)

Pomeroy, Earl S., me Richard W. Etulain. The American Far West in the Twentieth Century. Yale University Press, 2008.