Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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