APA (7th ed.) Citation

Widdowson. (1992). Teaching language as communication. Oxford University Press.

Chicago Style (17th ed.) Citation

Widdowson. Teaching Language as Communication. New York: Oxford University Press, 1992.

MLA (9th ed.) Citation

Widdowson. Teaching Language as Communication. Oxford University Press, 1992.

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