Richards, J. C., & Sandy, C. (1998). New interchange 1: English for international communication : video teacher's guide (Revised for use with New Interchange.). Cambridge: Cambridge University Press.
Chicago Style aipamenaRichards, Jack C., và Chuck Sandy. New Interchange 1: English for International Communication : Video Teacher's Guide. Revised for use with New Interchange. Cambridge: Cambridge University Press, 1998.
MLA aipamenaRichards, Jack C., và Chuck Sandy. New Interchange 1: English for International Communication : Video Teacher's Guide. Revised for use with New Interchange. Cambridge: Cambridge University Press, 1998.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.