APA (7th ed.) Citation

Widdowson, H. G. (2007). Discourse analysis. Oxford University Press.

Chicago Style (17th ed.) Citation

Widdowson, H. G. Discourse Analysis. Oxford ; New York: Oxford University Press, 2007.

MLA (8th ed.) Citation

Widdowson, H. G. Discourse Analysis. Oxford University Press, 2007.