APA aipamena

Ingram, J. C. (1978). International economic problem. New York: John Wiely and Sons.

Chicago Style aipamena

Ingram, James C. International Economic Problem. New York: John Wiely and Sons, 1978.

MLA aipamena

Ingram, James C. International Economic Problem. New York: John Wiely and Sons, 1978.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.