Cita APA (7th ed.)

Kohls, R. L., & Uhl, J. N. (1990). Marketing of agricultural products (7th ed.). Macmillan.

Cita Chicago (17th ed.)

Kohls, Richard Louis, i Joseph N. Uhl. Marketing of Agricultural Products. 7th ed. New York: Macmillan, 1990.

Cita MLA (9th ed.)

Kohls, Richard Louis, i Joseph N. Uhl. Marketing of Agricultural Products. 7th ed. Macmillan, 1990.