APA (7th ed.) Citation

Plummer, C. C., McGeary, D., & Carlson, D. H. (2003). Physical geology (9th ed.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Plummer, Charles C., David McGeary, and Diane H. Carlson. Physical Geology. 9th ed. Boston: McGraw-Hill, 2003.

MLA (9th ed.) Citation

Plummer, Charles C., et al. Physical Geology. 9th ed. McGraw-Hill, 2003.