APA (7th ed.) Citation

Levin, H. L. (1986). Contemporary physical geology (2nd ed.). Saunders College Pub..

Chicago Style (17th ed.) Citation

Levin, Harold L. Contemporary Physical Geology. 2nd ed. Philadelphia: Saunders College Pub., 1986.

MLA (9th ed.) Citation

Levin, Harold L. Contemporary Physical Geology. 2nd ed. Saunders College Pub., 1986.