APA引文

 Willoams, E. J. (2008).  Presentations in English.  Macmillan.

Trích dẫn kiểu Chicago

 Willoams, Erica J.  Presentations in English.  Macmillan, 2008.

MLA引文

 Willoams, Erica J.  Presentations in English.  Macmillan, 2008.

警告：这些引文格式不一定是100％准确.