APA (7th ed.) Citation

Plummer, C. C. (2013). Physical geology (14th ed.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Plummer, Charles C. Physical Geology. 14th ed. New York: McGraw-Hill, 2013.

MLA (9th ed.) Citation

Plummer, Charles C. Physical Geology. 14th ed. McGraw-Hill, 2013.