Snapp, R. R., & Neumann, A. L. (1960). Beef cattle (5th ed.). Wiley.
Cita Chicago (17th ed.)Snapp, Roscoe Raymond, i A. L. Neumann. Beef Cattle. 5th ed. New York: Wiley, 1960.
Cita MLA (8th ed.)Snapp, Roscoe Raymond, i A. L. Neumann. Beef Cattle. 5th ed. Wiley, 1960.
Atenció: Aquestes cites poden no estar 100% correctes.