Plummer, C. C. (2001). Physical geology. WCB/McGraw-Hill.
Chicago Style CitationPlummer, Charles C. Physical Geology. WCB/McGraw-Hill, 2001.
Cita MLAPlummer, Charles C. Physical Geology. WCB/McGraw-Hill, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.