Richards, J. C., Hull, J., & Proctor, S. (1998). New interchange 1: Class audio cassettes [Băng Casset]. Cambridge: Cambridge University Press.
Trích dẫn kiểu ChicagoRichards, Jack C., Jonathan Hull, và Susan Proctor. New Interchange 1: Class Audio Cassettes [Băng Casset]. Cambridge: Cambridge University Press, 1998.
Deismireacht MLARichards, Jack C., Jonathan Hull, và Susan Proctor. New Interchange 1: Class Audio Cassettes [Băng Casset]. Cambridge: Cambridge University Press, 1998.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.