APA引文

Beaumont, J. (2006). Northstar: Building skills for the TOEFL iBT. New York: Longman.

Trích dẫn kiểu Chicago

Beaumont, John. Northstar: Building Skills for the TOEFL IBT. New York: Longman, 2006.

MLA引文

Beaumont, John. Northstar: Building Skills for the TOEFL IBT. New York: Longman, 2006.

警告：這些引文格式不一定是100％准確.