APA citiranje

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

Trích dẫn kiểu Chicago

Richards, Jack C., Jonathan Hull, và Susan Proctor. Changes: English for International Communication. Cambridge: Cambridge University Press, 1994.

MLA citiranje

Richards, Jack C., Jonathan Hull, và Susan Proctor. Changes: English for International Communication. Cambridge: Cambridge University Press, 1994.