APA (7th ed.) Citation

Plummer, C. C., & McGeary, D. (1988). Physical geology (4th ed.). W.C. Brown Publishers.

Chicago Style (17th ed.) Citation

Plummer, Charles C., and David McGeary. Physical Geology. 4th ed. Dubuque, Iowa: W.C. Brown Publishers, 1988.

MLA (9th ed.) Citation

Plummer, Charles C., and David McGeary. Physical Geology. 4th ed. W.C. Brown Publishers, 1988.