APA ציטוט

Plummer, C. C. (2007). Physical geology. New York, NY: McGraw-Hill.

Trích dẫn kiểu Chicago

Plummer, Charles C. Physical Geology. New York, NY: McGraw-Hill, 2007.

ציטוט MLA

Plummer, Charles C. Physical Geology. New York, NY: McGraw-Hill, 2007.