APA (7th ed.) Citation
Richards, J. C., Hull, J., & Proctor, S. (1990). Interchange: English for international communication Teacher's Manual 1. Cambridge University Press.
Chicago Style (17th ed.) Citation
Richards, Jack C., Jonathan Hull, and Susan Proctor. Interchange: English for International Communication Teacher's Manual 1. United States: Cambridge University Press, 1990.
MLA (9th ed.) Citation
Richards, Jack C., et al. Interchange: English for International Communication Teacher's Manual 1. Cambridge University Press, 1990.
Warning: These citations may not always be 100% accurate.