APA (7th ed.) Citation

Swan. (1995). Practical English usage. Oxford Univ. Press.

Chicago Style (17th ed.) Citation

Swan. Practical English Usage. Oxford: Oxford Univ. Press, 1995.

MLA (8th ed.) Citation

Swan. Practical English Usage. Oxford Univ. Press, 1995.

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