APA引文

Littlejohn, A. (2001). Cambridge english worldwide. Cambridge: Cambridge University Press.

Trích dẫn kiểu Chicago

Littlejohn, Andrew. Cambridge English Worldwide. Cambridge: Cambridge University Press, 2001.

MLA引文

Littlejohn, Andrew. Cambridge English Worldwide. Cambridge: Cambridge University Press, 2001.

警告：这些引文格式不一定是100％准确.