Richards, J. C., Hull, J., & Proctor, S. (2008). New interchange: English for international communication. Cambridge University Press, Cambridge University Press India Pvt. Ltd..

Richards, Jack C., Jonathan Hull, and Susan Proctor. New Interchange: English for International Communication. Cambridge ; New Delhi: Cambridge University Press, Cambridge University Press India Pvt. Ltd., 2008.

Richards, Jack C., et al. New Interchange: English for International Communication. Cambridge University Press, Cambridge University Press India Pvt. Ltd., 2008.