Citazione Stile APA (7a Edizione)

Richards, J. C., Hull, J., & Proctor, S. (2005). Interchange: Workbook 1 (3a. ed.). Cambridge University.

Citazione stile Chigago Style (17a edizione)

Richards, Jack C., Jonathan Hull, e Susan Proctor. Interchange: Workbook 1. 3a. ed. Nueva York: Cambridge University, 2005.

Citatione MLA (9a ed.)

Richards, Jack C., et al. Interchange: Workbook 1. 3a. ed. Cambridge University, 2005.