Richards, J. C., & Hull, J. (1997). New interchange 1: English for international communication : teacher's edition. Cambridge: Cambridge University Press.
Παραπομπή Chicago StyleRichards, Jack C., και Jonathan Hull. New Interchange 1: English for International Communication : Teacher's Edition. Cambridge: Cambridge University Press, 1997.
Παραπομπή MLARichards, Jack C., και Jonathan Hull. New Interchange 1: English for International Communication : Teacher's Edition. Cambridge: Cambridge University Press, 1997.
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