APA (7th ed.) Citation

Levorsen, A. I., & Berry, F. A. F. (2001). Geology of petroleum. AAPG Foundation.

Chicago Style (17th ed.) Citation

Levorsen, A. I., and Frederick A. F. Berry. Geology of Petroleum. Tulsa, Okla.: AAPG Foundation, 2001.

MLA (9th ed.) Citation

Levorsen, A. I., and Frederick A. F. Berry. Geology of Petroleum. AAPG Foundation, 2001.

Warning: These citations may not always be 100% accurate.