Cita APA

Russell, K., & Williams, S. (1974). The principles of dairy farming (7th. ed.). Ipswich: Farming Press.

Citación estilo Chicago

Russell, Kenneth, and Stephen Williams. The Principles of Dairy Farming. 7th. ed. Ipswich: Farming Press, 1974.

Cita MLA

Russell, Kenneth, and Stephen Williams. The Principles of Dairy Farming. 7th. ed. Ipswich: Farming Press, 1974.