Richards, J. C. (1998). New interchange intro: Class audio cassettes [Băng Casset]. Cambridge: Cambridge University Press.
Trích dẫn kiểu ChicagoRichards, Jack C. New Interchange Intro: Class Audio Cassettes [Băng Casset]. Cambridge: Cambridge University Press, 1998.
Deismireacht MLARichards, Jack C. New Interchange Intro: Class Audio Cassettes [Băng Casset]. Cambridge: Cambridge University Press, 1998.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.