APA (7th ed.) Zitazioa

Kohls, R. L. (1967). Marketing of Agricultural products (3rd ed.). Collier- Macmillan.

Chicago Style (17th ed.) Zitazioa

Kohls, Richard L. Marketing of Agricultural Products. 3rd ed. London: Collier- Macmillan, 1967.

MLA (9th ed.) Zitazioa

Kohls, Richard L. Marketing of Agricultural Products. 3rd ed. Collier- Macmillan, 1967.