APA (7th ed.) Citation

Klussmann, W. G., & Ramsey, C. W. (1979). Poisonous snakes of Texas. Texas Agricultural Extension Service.

Chicago Style (17th ed.) Citation

Klussmann, Wallace G., and Charles W. Ramsey. Poisonous Snakes of Texas. College Station, Texas: Texas Agricultural Extension Service, 1979.

MLA (9th ed.) Citation

Klussmann, Wallace G., and Charles W. Ramsey. Poisonous Snakes of Texas. Texas Agricultural Extension Service, 1979.