Citazione Stile APA (7a Edizione)

Richards, J. C., Hull, J., & Proctor, S. (1998). New Interchange: English for international communication. Work Book 23. Cambridge University.

Citazione stile Chigago Style (17a edizione)

Richards, Jack C., Jonathan Hull, e Susan Proctor. New Interchange: English for International Communication. Work Book 23. Cambridge: Cambridge University, 1998.

Citatione MLA (9a ed.)

Richards, Jack C., et al. New Interchange: English for International Communication. Work Book 23. Cambridge University, 1998.