APA (7th ed.) Citation

Richards, J. C., Hull, J., & Proctor, S. (2005). Interchange (3a. edición.). Cambridge university press.

Chicago Style (17th ed.) Citation

Richards, Jack C., Jonathan Hull, and Susan Proctor. Interchange. 3a. edición. New York: Cambridge university press, 2005.

MLA (9th ed.) Citation

Richards, Jack C., et al. Interchange. 3a. edición. Cambridge university press, 2005.