APA引文

(2011). English unlimited B1: Pre-intermadiate coursebook. Cambridge: Cambridge University Press.

Trích dẫn kiểu Chicago

English Unlimited B1: Pre-intermadiate Coursebook. Cambridge: Cambridge University Press, 2011.

MLA引文

English Unlimited B1: Pre-intermadiate Coursebook. Cambridge: Cambridge University Press, 2011.

警告：这些引文格式不一定是100％准确.