Richards, J. C., Hull, J., & Proctor, S. (1998). New interchange 3: English for international communication : teacher's manual. Cambridge: Cambridge University Press.
Dyfyniad Arddull ChicagoRichards, Jack C., Jonathan Hull, và Susan Proctor. New Interchange 3: English for International Communication : Teacher's Manual. Cambridge: Cambridge University Press, 1998.
Dyfyniad MLARichards, Jack C., Jonathan Hull, và Susan Proctor. New Interchange 3: English for International Communication : Teacher's Manual. Cambridge: Cambridge University Press, 1998.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.