Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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