APA (7th ed.) Citation

Shaw, C. E., & Campbell, S. (1974). Snakes of the American West ([1st ed.].).

Chicago Style (17th ed.) Citation

Shaw, Charles E., and Sheldon Campbell. Snakes of the American West. [1st ed.]. 1974.

MLA (9th ed.) Citation

Shaw, Charles E., and Sheldon Campbell. Snakes of the American West. [1st ed.]. 1974.