APA (7th ed.) Citation

Levin, H. L. (2010). The earth through time (9. ed.). Wiley.

Chicago Style (17th ed.) Citation

Levin, Harold L. The Earth Through Time. 9. ed. Chichester [u.a.]: Wiley, 2010.

MLA (9th ed.) Citation

Levin, Harold L. The Earth Through Time. 9. ed. Wiley, 2010.