APA (7th ed.) Citation

Quirk, R., & Greenbaum, S. (1983). A university grammar of english. Longman.

Chicago Style (17th ed.) Citation

Quirk, Randolph, and Sidney Greenbaum. A University Grammar of English. Longman, 1983.

MLA (8th ed.) Citation

Quirk, Randolph, and Sidney Greenbaum. A University Grammar of English. Longman, 1983.

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