Richards, J. C., & Jack C. Richards; Jonathan Hull; Susan Proctor. (1998). New interchange: English for international communication ; Student's book 3. Cambridge: Cambridge University Press.
Chicago Style aipamenaRichards, Jack C., và Jack C. Richards; Jonathan Hull; Susan Proctor. New Interchange: English for International Communication ; Student's Book 3. Cambridge: Cambridge University Press, 1998.
MLA aipamenaRichards, Jack C., và Jack C. Richards; Jonathan Hull; Susan Proctor. New Interchange: English for International Communication ; Student's Book 3. Cambridge: Cambridge University Press, 1998.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.