APA (7th ed.) Citation

Quirk, R., & Greenbaum, S. (1973). A university grammar of English. English Language Book Sociey.

Chicago Style (17th ed.) Citation

Quirk, Randolph, and Sidney Greenbaum. A University Grammar of English. English Language Book Sociey, 1973.

MLA (8th ed.) Citation

Quirk, Randolph, and Sidney Greenbaum. A University Grammar of English. English Language Book Sociey, 1973.

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