APA (7th ed.) Citation

Levin, H. L. (1983). The earth through time (2nd ed.). Saunders College Pub..

Chicago Style (17th ed.) Citation

Levin, Harold L. The Earth Through Time. 2nd ed. Philadelphia: Saunders College Pub., 1983.

MLA (8th ed.) Citation

Levin, Harold L. The Earth Through Time. 2nd ed. Saunders College Pub., 1983.

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