APA (7th ed.) Citation

Hudson, R. (1998). English grammar / Richard Hudson. Routledge.

Chicago Style (17th ed.) Citation

Hudson, Richard. English Grammar / Richard Hudson. London: Routledge, 1998.

MLA (9th ed.) Citation

Hudson, Richard. English Grammar / Richard Hudson. Routledge, 1998.

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