APA (7th ed.) Citation

Richards, J. C. (2006). Interchange: Intro student book B (Fourth edition.). Cambridge university press.

Chicago Style (17th ed.) Citation

Richards, Jack C. Interchange: Intro Student Book B. Fourth edition. New York: Cambridge university press, 2006.

MLA (9th ed.) Citation

Richards, Jack C. Interchange: Intro Student Book B. Fourth edition. Cambridge university press, 2006.