APA (7th ed.) Citation

Levin, H. L. (2006). The earth through time (8th ed.). John Wiley.

Chicago Style (17th ed.) Citation

Levin, Harold L. The Earth Through Time. 8th ed. Hoboken, NJ: John Wiley, 2006.

MLA (8th ed.) Citation

Levin, Harold L. The Earth Through Time. 8th ed. John Wiley, 2006.