APA (7th ed.) Citation

Tennant, A. (1985). A field guide to Texas snakes. Gulf Pub. Co..

Chicago Style (17th ed.) Citation

Tennant, Alan. A Field Guide to Texas Snakes. Houston, Tex.: Gulf Pub. Co., 1985.

MLA (9th ed.) Citation

Tennant, Alan. A Field Guide to Texas Snakes. Gulf Pub. Co., 1985.