APA (7th ed.) Citation

Greenbaum, S., & Quirk, R. (1998). A student's grammar of the English language (Rev. impr.). Longman.

Chicago Style (17th ed.) Citation

Greenbaum, Sidney, and Randolph Quirk. A Student's Grammar of the English Language. Rev. impr. Harlow: Longman, 1998.

MLA (9th ed.) Citation

Greenbaum, Sidney, and Randolph Quirk. A Student's Grammar of the English Language. Rev. impr. Longman, 1998.