North, F. (1985). Petroleum geology. Unwin Hyman.
Chicago Style (17th ed.) CitationNorth, F.K. Petroleum Geology. Boston: Unwin Hyman, 1985.
MLA (9th ed.) CitationNorth, F.K. Petroleum Geology. Unwin Hyman, 1985.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.