APA (7th ed.) Citation

Swan, M. (2016). Practical English usage (Fourth edition.). Oxford University Press.

Chicago Style (17th ed.) Citation

Swan, Michael. Practical English Usage. Fourth edition. Oxford: Oxford University Press, 2016.

MLA (9th ed.) Citation

Swan, Michael. Practical English Usage. Fourth edition. Oxford University Press, 2016.

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