APA (7th ed.) Citation

Quirk, R., & Stein, G. (1990). English in use. Longman.

Chicago Style (17th ed.) Citation

Quirk, Randolph, and Gabriele Stein. English in Use. Harlow: Longman, 1990.

MLA (9th ed.) Citation

Quirk, Randolph, and Gabriele Stein. English in Use. Longman, 1990.

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