APA (7th ed.) Citation

Bull, S., & Carroll, W. E. (1937). Principles of feeding farm animals (Rev. ed.). Macmillan.

Chicago Style (17th ed.) Citation

Bull, Sleeter, and W. E. Carroll. Principles of Feeding Farm Animals. Rev. ed. New York: Macmillan, 1937.

MLA (9th ed.) Citation

Bull, Sleeter, and W. E. Carroll. Principles of Feeding Farm Animals. Rev. ed. Macmillan, 1937.