Richards, J. C., & Gordon, D. B. (1999). New interchange Intro: English for international communication : video teacher's guide (Revised for use with New Interchange.). Cambridge: Cambridge University Press.
استشهاد بنمط شيكاغوRichards, Jack C., و Deborah B. Gordon. New Interchange Intro: English for International Communication : Video Teacher's Guide. Revised for use with New Interchange. Cambridge: Cambridge University Press, 1999.
MLA استشهادRichards, Jack C., و Deborah B. Gordon. New Interchange Intro: English for International Communication : Video Teacher's Guide. Revised for use with New Interchange. Cambridge: Cambridge University Press, 1999.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.