Richards, J. C., Hull, J., & Proctor, S. (1990). Interchange: English for international communication. New York: Cambridge University Press.
Trích dẫn kiểu ChicagoRichards, Jack C., Jonathan Hull, và Susan Proctor. Interchange: English for International Communication. New York: Cambridge University Press, 1990.
MLA citiranjeRichards, Jack C., Jonathan Hull, và Susan Proctor. Interchange: English for International Communication. New York: Cambridge University Press, 1990.
Opozorilo: Ti citati niso vedno 100% točni.