APA引文

Hallows, R. (2006). IELTS express. Boston, MA: Thomson.

Trích dẫn kiểu Chicago

Hallows, Richard. IELTS Express. Boston, MA: Thomson, 2006.

MLA引文

Hallows, Richard. IELTS Express. Boston, MA: Thomson, 2006.

警告：這些引文格式不一定是100％准確.