Cita APA

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

Citación estilo Chicago

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

Cita MLA

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

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