Cita APA (7th ed.)
Barrett M. A. (1974). Milk and beef production in the tropics. OUP.
Cita Chicago (17th ed.)
Barrett M. A. Milk and Beef Production in the Tropics. London: OUP, 1974.
Cita MLA (9th ed.)
Barrett M. A. Milk and Beef Production in the Tropics. OUP, 1974.
Atenció: Aquestes cites poden no estar 100% correctes.