Richards, J. C. (1995). Changes: English for international communication. Cambridge: Cambridge University Press.
Chicago Style CitationRichards, Jack C. Changes: English for International Communication. Cambridge: Cambridge University Press, 1995.
Cita MLARichards, Jack C. Changes: English for International Communication. Cambridge: Cambridge University Press, 1995.
Atenció: Aquestes cites poden no estar 100% correctes.