Cornelsen. (2009). Interactive Languages Course Business English Socializing & Small Talk (Kèm trực tiếp CD). Nhân Trí Việt.
Trích dẫn kiểu ChicagoCornelsen. Interactive Languages Course Business English Socializing & Small Talk (Kèm Trực Tiếp CD). Nhân Trí Việt, 2009.
Deismireacht MLACornelsen. Interactive Languages Course Business English Socializing & Small Talk (Kèm Trực Tiếp CD). Nhân Trí Việt, 2009.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.