APA (7th ed.) Citation

Richards, J. C. (1999). Interchange: English for international communication. Intro. Cambridge university press.

Chicago Style (17th ed.) Citation

Richards, Jack C. Interchange: English for International Communication. Intro. Cambrigde: Cambridge university press, 1999.

MLA (9th ed.) Citation

Richards, Jack C. Interchange: English for International Communication. Intro. Cambridge university press, 1999.

Warning: These citations may not always be 100% accurate.