APA (7th ed.) Citation

Spaulding, N. E., & Namowitz, S. N. (2005). Earth science. McDougal Littell.

Chicago Style (17th ed.) Citation

Spaulding, Nancy E., and Samuel N. Namowitz. Earth Science. Evaston, IL: McDougal Littell, 2005.

MLA (9th ed.) Citation

Spaulding, Nancy E., and Samuel N. Namowitz. Earth Science. McDougal Littell, 2005.