APA引文

Alexander, L. (1991). New Concept English: Developing Skills. London: Longman.

Trích dẫn kiểu Chicago

Alexander, L.g. New Concept English: Developing Skills. London: Longman, 1991.

MLA引文

Alexander, L.g. New Concept English: Developing Skills. London: Longman, 1991.

警告：這些引文格式不一定是100％准確.