Richards, J. C., Hull, J., & Proctor, S. (1990). Inter change: English for international communication: Student's book. Cambrige University Press.
Chicago Style (17th ed.) CitationRichards, Jack C., Jonathan Hull, and Susan Proctor. Inter Change: English for International Communication: Student's Book. New York: Cambrige University Press, 1990.
MLA (8th ed.) CitationRichards, Jack C., et al. Inter Change: English for International Communication: Student's Book. Cambrige University Press, 1990.
Warning: These citations may not always be 100% accurate.