Blackwell, A. (2004). English knowhow: Student book 3. Oxford: Oxford University Press.
Trích dẫn kiểu ChicagoBlackwell, Angela. English Knowhow: Student Book 3. Oxford: Oxford University Press, 2004.
Deismireacht MLABlackwell, Angela. English Knowhow: Student Book 3. Oxford: Oxford University Press, 2004.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.