APA (7th ed.) Citation

Hudson, R. A. (2001). English grammar (1. publ., repr.). Routledge.

Chicago Style (17th ed.) Citation

Hudson, Richard A. English Grammar. 1. publ., repr. London [u.a.]: Routledge, 2001.

MLA (9th ed.) Citation

Hudson, Richard A. English Grammar. 1. publ., repr. Routledge, 2001.