APA (7th ed.) Citation

Swan, M. (1980). Practical English usage (1. publ.). Oxford Univ. Press.

Chicago Style (17th ed.) Citation

Swan, Michael. Practical English Usage. 1. publ. Oxford [u.a.]: Oxford Univ. Press, 1980.

MLA (9th ed.) Citation

Swan, Michael. Practical English Usage. 1. publ. Oxford Univ. Press, 1980.

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