APA引文

Plummer, C. C. (1999). Physical geology. WCB/McGraw-Hill.

Trích dẫn kiểu Chicago

Plummer, Charles C. Physical Geology. WCB/McGraw-Hill, 1999.

MLA引文

Plummer, Charles C. Physical Geology. WCB/McGraw-Hill, 1999.

警告：这些引文格式不一定是100％准确.