Cita APA (7a ed.)

Cooper, M. M., & Morris, D. W. (1973). Grass farming (3rd edition.). Farming Press.

Cita Chicago Style (17a ed.)

Cooper, M. Mcg, y David W. Morris. Grass Farming. 3rd edition. Ipswich: Farming Press, 1973.

Cita MLA (8a ed.)

Cooper, M. Mcg, y David W. Morris. Grass Farming. 3rd edition. Farming Press, 1973.