Cita APA (7a ed.)
Richards, J. C. (2002). Changes: English for international communication. Cambridge university press.
Cita Chicago Style (17a ed.)
Richards, Jack C. Changes: English for International Communication. Cambridge: Cambridge university press, 2002.
Cita MLA (9a ed.)
Richards, Jack C. Changes: English for International Communication. Cambridge university press, 2002.
Precaución: Estas citas no son 100% exactas.