APA (7th ed.) Citation

Charles C Plummer, D. M. (1993). Physical geology. WMC Brown.

Chicago Style (17th ed.) Citation

Charles C Plummer, David McGeary. Physical Geology. WMC Brown, 1993.

MLA (8th ed.) Citation

Charles C Plummer, David McGeary. Physical Geology. WMC Brown, 1993.

Warning: These citations may not always be 100% accurate.