Cita APA (7a ed.)

Plummer, C. C., & McGeary, D. (1996). Physical geology (7th ed.). Wm. C. Brown.

Cita Chicago Style (17a ed.)

Plummer, Charles C., y David McGeary. Physical Geology. 7th ed. Dubuque, IA: Wm. C. Brown, 1996.

Cita MLA (9a ed.)

Plummer, Charles C., y David McGeary. Physical Geology. 7th ed. Wm. C. Brown, 1996.