APA引文

Richards, J. C. (1994). Changes: English for international communication. Cambridge University Press.

Trích dẫn kiểu Chicago

Richards, Jack C. Changes: English for International Communication. Cambridge University Press, 1994.

MLA引文

Richards, Jack C. Changes: English for International Communication. Cambridge University Press, 1994.

警告：这些引文格式不一定是100％准确.