APA aipamena

McCalla, A. F., & Josling, T. E. (1985). Agricultural policies and world markets. Macmillan.

Chicago Style aipamena

McCalla, Alex F., and Timothy Edward Josling. Agricultural Policies and World Markets. New York: Macmillan, 1985.

MLA aipamena

McCalla, Alex F., and Timothy Edward Josling. Agricultural Policies and World Markets. Macmillan, 1985.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.