Jack C. Richards. (1994). Changes intro ( Student's book ): English for international communication. Cambridge, UK: Cambridge Univ. Press.
Chicago Style aipamenaJack C. Richards. Changes Intro ( Student's Book ): English for International Communication. Cambridge, UK: Cambridge Univ. Press, 1994.
MLA aipamenaJack C. Richards. Changes Intro ( Student's Book ): English for International Communication. Cambridge, UK: Cambridge Univ. Press, 1994.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.