APA (7th ed.) Citation

Swan, M. (1984). Practical English usage (1. publ., 9. impr.). Univ. Pr.

Chicago Style (17th ed.) Citation

Swan, Michael. Practical English Usage. 1. publ., 9. impr. Oxford: Univ. Pr, 1984.

MLA (9th ed.) Citation

Swan, Michael. Practical English Usage. 1. publ., 9. impr. Univ. Pr, 1984.

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