Epp, D. J. (1981). Introduction to agricultural economics. New York: Collier Macmillan.
Chicago Style CitationEpp, Donald J. Introduction to Agricultural Economics. New York: Collier Macmillan, 1981.
Cita MLAEpp, Donald J. Introduction to Agricultural Economics. New York: Collier Macmillan, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.