Cita APA (7a ed.)

Richards, J. C. (1996). Interchange 1: Workbook. Cambridge University Press.

Cita Chicago Style (17a ed.)

Richards, Jack C. Interchange 1: Workbook. Cambridge, Reino Unido: Cambridge University Press, 1996.

Cita MLA (9a ed.)

Richards, Jack C. Interchange 1: Workbook. Cambridge University Press, 1996.