Richards, J. C., Hull, J., & Proctor, S. (1996). Changes: English for international communication. Cambridge: Cambridge University Press.
Trích dẫn kiểu ChicagoRichards, Jack C., Jonathan Hull, và Susan Proctor. Changes: English for International Communication. Cambridge: Cambridge University Press, 1996.
MLA citiranjeRichards, Jack C., Jonathan Hull, và Susan Proctor. Changes: English for International Communication. Cambridge: Cambridge University Press, 1996.
Opozorilo: Ti citati niso vedno 100% točni.