Richards, J. C. (1997). New interchange 1: English for international communication : video activity (Revised for use with New Interchange.). Cambridge: Cambridge University Press.
استشهاد بنمط شيكاغوRichards, Jack C. New Interchange 1: English for International Communication : Video Activity. Revised for use with New Interchange. Cambridge: Cambridge University Press, 1997.
MLA استشهادRichards, Jack C. New Interchange 1: English for International Communication : Video Activity. Revised for use with New Interchange. Cambridge: Cambridge University Press, 1997.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.