APA (7th ed.) Citation

Greenbaum, S., Leech, G., & Svartvik, J. (1979). Studies in English linguistics for Randolph Quirk. Longman.

Chicago Style (17th ed.) Citation

Greenbaum, Sidney, Geoffrey Leech, and Jan Svartvik. Studies in English Linguistics for Randolph Quirk. London: Longman, 1979.

MLA (9th ed.) Citation

Greenbaum, Sidney, et al. Studies in English Linguistics for Randolph Quirk. Longman, 1979.