APA引文

(2009). Top tips for IELTS academic. Cambridge: UCLES.

Trích dẫn kiểu Chicago

Top Tips for IELTS Academic. Cambridge: UCLES, 2009.

MLA引文

Top Tips for IELTS Academic. Cambridge: UCLES, 2009.

警告：這些引文格式不一定是100％准確.