APA (7th ed.) Citation

Quirk, R., & Greenbaum, S. (1993). A university grammar of English (27. impression.). Longman.

Chicago Style (17th ed.) Citation

Quirk, Randolph, and Sidney Greenbaum. A University Grammar of English. 27. impression. Harlow: Longman, 1993.

MLA (9th ed.) Citation

Quirk, Randolph, and Sidney Greenbaum. A University Grammar of English. 27. impression. Longman, 1993.

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