APA (7th ed.) Citation

Levorsen, A. I. (1967). Geology of petroleum (2. ed.). Freeman.

Chicago Style (17th ed.) Citation

Levorsen, Arville Irving. Geology of Petroleum. 2. ed. San Francisco [u.a.]: Freeman, 1967.

MLA (9th ed.) Citation

Levorsen, Arville Irving. Geology of Petroleum. 2. ed. Freeman, 1967.