Cita APA

Richards, J. C. (1996). Changes: English for international communication : workbook 3. Cambridge University Press.

Citación estilo Chicago

Richards, Jack C. Changes: English for International Communication : Workbook 3. Cambridge University Press, 1996.

Cita MLA

Richards, Jack C. Changes: English for International Communication : Workbook 3. Cambridge University Press, 1996.