Richards, J. C., Hull, J., & Proctor, S. (1994). Interchange: English for international communication. Đà Nẵng : New York: NXb. Đà Nẵng; Cambridge University Press.
Styl cytowania ChicagoRichards, Jack C., Jonathan Hull, i Susan Proctor. Interchange: English for International Communication. Đà Nẵng : New York: NXb. Đà Nẵng; Cambridge University Press, 1994.
Styl cytowania MLARichards, Jack C., Jonathan Hull, i Susan Proctor. Interchange: English for International Communication. Đà Nẵng : New York: NXb. Đà Nẵng; Cambridge University Press, 1994.
Uwaga: Te cytaty mogą odróżniać się od wytycznej twojego fakultetu..