APA (7th ed.) Zitazioa

TURNER, L. (1978). Oil companies in the international system. Allen and Unwin.

Chicago Style (17th ed.) Zitazioa

TURNER, Louis. Oil Companies in the International System. London: Allen and Unwin, 1978.

MLA (9th ed.) Zitazioa

TURNER, Louis. Oil Companies in the International System. Allen and Unwin, 1978.