Richards, J. C. (1997). New interchange 1: English for international communication : video activity (Revised for use with New Interchange.). Cambridge: Cambridge University Press.
শিকাগো স্টাইলে সাইটেশনRichards, Jack C. New Interchange 1: English for International Communication : Video Activity. Revised for use with New Interchange. Cambridge: Cambridge University Press, 1997.
এমএলএ সাইটেশনRichards, Jack C. New Interchange 1: English for International Communication : Video Activity. Revised for use with New Interchange. Cambridge: Cambridge University Press, 1997.
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