APA (7th ed.) Citation

Plummer, C. C., McGeary, D., & Carlson, D. H. (1999). Physical geology (8th ed.). WCB/McGraw-Hill.

Chicago Style (17th ed.) Citation

Plummer, Charles C., David McGeary, and Diane H. Carlson. Physical Geology. 8th ed. Boston: WCB/McGraw-Hill, 1999.

MLA (9th ed.) Citation

Plummer, Charles C., et al. Physical Geology. 8th ed. WCB/McGraw-Hill, 1999.