Richards, J. C. (1994). Changes: English for international communication. Cambridge University Press.
Trích dẫn kiểu ChicagoRichards, Jack C. Changes: English for International Communication. Cambridge University Press, 1994.
ציטוט MLARichards, Jack C. Changes: English for International Communication. Cambridge University Press, 1994.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.