Cita APA (7th ed.)

Hopkins, J. A., & Murray, W. G. (1953). Elements of farm management (4th ed.). Prentice-Hall.

Cita Chicago (17th ed.)

Hopkins, John A., i William Gordon Murray. Elements of Farm Management. 4th ed. New York: Prentice-Hall, 1953.

Cita MLA (9th ed.)

Hopkins, John A., i William Gordon Murray. Elements of Farm Management. 4th ed. Prentice-Hall, 1953.

Atenció: Aquestes cites poden no estar 100% correctes.