APA引文

(2002). Headway: Elementary & Pre- Intermediate. New York: Mc Graw-Hill.

Trích dẫn kiểu Chicago

Headway: Elementary & Pre- Intermediate. New York: Mc Graw-Hill, 2002.

MLA引文

Headway: Elementary & Pre- Intermediate. New York: Mc Graw-Hill, 2002.

警告：這些引文格式不一定是100％准確.