APA (7e ed.) Bronvermelding

Cooper, M. M., & Morris, D. W. (1977). Grass farming (4a. ed.). Farming Press.

Chicago (17e ed.) Bronvermelding

Cooper, M. McGregor, en D. W. Morris. Grass Farming. 4a. ed. Ipswich: Farming Press, 1977.

MLA (9e ed.) Bronvermelding

Cooper, M. McGregor, en D. W. Morris. Grass Farming. 4a. ed. Farming Press, 1977.