APA (7th ed.) Citation

Swan, M. (2005). Practical English usage. Oxford Univ Press.

Chicago Style (17th ed.) Citation

Swan, Michael. Practical English Usage. Oxford Univ Press, 2005.

MLA (8th ed.) Citation

Swan, Michael. Practical English Usage. Oxford Univ Press, 2005.

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