Raven, P. H. (1999). Biology. WCB/McGraw-Hill.
Trích dẫn kiểu ChicagoRaven, Peter H. Biology. WCB/McGraw-Hill, 1999.
MLA引文Raven, Peter H. Biology. WCB/McGraw-Hill, 1999.
警告：这些引文格式不一定是100％准确.
APA引文
Raven, P. H. (1999). Biology. WCB/McGraw-Hill.
Trích dẫn kiểu ChicagoRaven, Peter H. Biology. WCB/McGraw-Hill, 1999.
MLA引文Raven, Peter H. Biology. WCB/McGraw-Hill, 1999.