Citazione Stile APA (7a Edizione)

Richards, J. C., & Hull, J. P. (1996). Interchange: English for international communication: teacher's manual. 2.

Citazione stile Chigago Style (17a edizione)

Richards, Jack C., e Jonathan Proctor Hull. Interchange: English for International Communication: Teacher's Manual. 2. Cambridge, 1996.

Citatione MLA (9a ed.)

Richards, Jack C., e Jonathan Proctor Hull. Interchange: English for International Communication: Teacher's Manual. 2. 1996.