APA (7th ed.) Citation

Cooper, G. A., & Watt, R. F. (1973). Oak. USDA Forest Service.

Chicago Style (17th ed.) Citation

Cooper, Glenn A., and Richard F. Watt. Oak. Washington, D.C: USDA Forest Service, 1973.

MLA (9th ed.) Citation

Cooper, Glenn A., and Richard F. Watt. Oak. USDA Forest Service, 1973.