Style de citation APA (7e éd.)

Cooper, M. M., & Willis, M. B. (1972). Profitable beef production (3a. ed.). Farming Press.

Style de citation Chicago (17e éd.)

Cooper, M. McGregor, et M. B. Willis. Profitable Beef Production. 3a. ed. Ipswich: Farming Press, 1972.

Style de citation MLA (9e éd.)

Cooper, M. McGregor, et M. B. Willis. Profitable Beef Production. 3a. ed. Farming Press, 1972.