(1987). Speaking: Intermediate. Oxford, UK: Oxford University Press.
Trích dẫn kiểu ChicagoSpeaking: Intermediate. Oxford, UK: Oxford University Press, 1987.
Deismireacht MLASpeaking: Intermediate. Oxford, UK: Oxford University Press, 1987.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.