Mark Harrison. (2002). BEC higher pratice tests - advanced -casette 1. Oxford, NY: Oxford Univ. Press.
Trích dẫn kiểu ChicagoMark Harrison. BEC Higher Pratice Tests - Advanced -casette 1. Oxford, NY: Oxford Univ. Press, 2002.
Deismireacht MLAMark Harrison. BEC Higher Pratice Tests - Advanced -casette 1. Oxford, NY: Oxford Univ. Press, 2002.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.