APA (7th ed.) Citation

Greenbaum, S., Leech, G. N., Svartvik, J., & Quirk, R. (1980). Studies in English linguistics for Randolph Quirk. Longman.

Chicago Style (17th ed.) Citation

Greenbaum, Sidney, Geoffrey N. Leech, Jan Svartvik, and Randolph Quirk. Studies in English Linguistics for Randolph Quirk. London ; New York: Longman, 1980.

MLA (9th ed.) Citation

Greenbaum, Sidney, et al. Studies in English Linguistics for Randolph Quirk. Longman, 1980.