APA (7th ed.) Citation

LEVIN, H. (1983). The earth through time. Saunders College Publ.

Chicago Style (17th ed.) Citation

LEVIN, Harold. The Earth Through Time. Saunders College Publ, 1983.

MLA (8th ed.) Citation

LEVIN, Harold. The Earth Through Time. Saunders College Publ, 1983.

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