Cita APA (7th ed.)

Richards, J. C. (1995). Interchange: English for international communication. Intro Workbook. Cambridge University Press.

Cita Chicago (17th ed.)

Richards, Jack C. Interchange: English for International Communication. Intro Workbook. Nueva York: Cambridge University Press, 1995.

Cita MLA (9th ed.)

Richards, Jack C. Interchange: English for International Communication. Intro Workbook. Cambridge University Press, 1995.