Παραπομπή APA

Epp,Donald J, & Malone,John W. (1981). Introduction to agricultural economics. Mac Millan Publishing Co.

Παραπομπή Chicago Style

Epp,Donald J, και Malone,John W. Introduction to Agricultural Economics. New York: Mac Millan Publishing Co, 1981.

Παραπομπή MLA

Epp,Donald J, και Malone,John W. Introduction to Agricultural Economics. Mac Millan Publishing Co, 1981.