APA (7th ed.) Citation

Levorsen, A. I., & Berry, F. A. F. (1967). Geology of petroleum (2nd ed.). W.H. Freeman.

Chicago Style (17th ed.) Citation

Levorsen, A. I., and Frederick A. F. Berry. Geology of Petroleum. 2nd ed. San Francisco: W.H. Freeman, 1967.

MLA (9th ed.) Citation

Levorsen, A. I., and Frederick A. F. Berry. Geology of Petroleum. 2nd ed. W.H. Freeman, 1967.