Cita APA (7a ed.)
Plummer, C. C., & McGeary, D. (1982). Physical geology (2nd ed.). Wm. C. Brown.
Cita Chicago Style (17a ed.)
Plummer, Charles C., y David McGeary. Physical Geology. 2nd ed. Dubuque: Wm. C. Brown, 1982.
Cita MLA (9a ed.)
Plummer, Charles C., y David McGeary. Physical Geology. 2nd ed. Wm. C. Brown, 1982.
Precaución: Estas citas no son 100% exactas.