APA引文

Keen, D. (1994). Developing vocabulary skills. Boston, MA: Thomson/Heinle.

Trích dẫn kiểu Chicago

Keen, Denis. Developing Vocabulary Skills. Boston, MA: Thomson/Heinle, 1994.

MLA引文

Keen, Denis. Developing Vocabulary Skills. Boston, MA: Thomson/Heinle, 1994.

警告：這些引文格式不一定是100％准確.