APA (7th ed.) Zitazioa

North, F. (1985). Petroleum geology. Unwin Hyman.

Chicago Style (17th ed.) Zitazioa

North, F.K. Petroleum Geology. Boston: Unwin Hyman, 1985.

MLA (9th ed.) Zitazioa

North, F.K. Petroleum Geology. Unwin Hyman, 1985.