(2002). American headway; workbook - starter. Oxford: Oxford University Press.
Trích dẫn kiểu ChicagoAmerican Headway; Workbook - Starter. Oxford: Oxford University Press, 2002.
Deismireacht MLAAmerican Headway; Workbook - Starter. Oxford: Oxford University Press, 2002.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.