APA aipamena

Richards, J. C. (1994). Changes: English for international communication. Cambridge: Cambridge University Press.

Chicago Style aipamena

Richards, Jack C. Changes: English for International Communication. Cambridge: Cambridge University Press, 1994.

MLA aipamena

Richards, Jack C. Changes: English for International Communication. Cambridge: Cambridge University Press, 1994.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.