Richards, J. C. (1991). Interchange: English for international communication : Teacher's manual. New York, US: Cambridge University Press.
Chicago-stil citatRichards, Jack C. Interchange: English for International Communication : Teacher's Manual. New York, US: Cambridge University Press, 1991.
MLA-referensRichards, Jack C. Interchange: English for International Communication : Teacher's Manual. New York, US: Cambridge University Press, 1991.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.