APA (7th ed.) Citation

Ruby, R. H., & Brown, J. A. (1986). A guide to the Indian tribes of the Pacific Northwest. University of Oklahoma.

Chicago Style (17th ed.) Citation

Ruby, Robert H., and John A. Brown. A Guide to the Indian Tribes of the Pacific Northwest. Norman: University of Oklahoma, 1986.

MLA (9th ed.) Citation

Ruby, Robert H., and John A. Brown. A Guide to the Indian Tribes of the Pacific Northwest. University of Oklahoma, 1986.