APA aipamena

Epp, D. J. (1981). Introduction to agricultural economics. New York: Collier Macmillan.

Chicago Style aipamena

Epp, Donald J. Introduction to Agricultural Economics. New York: Collier Macmillan, 1981.

MLA aipamena

Epp, Donald J. Introduction to Agricultural Economics. New York: Collier Macmillan, 1981.