(1993). Headway teacher's book: Elementary. New York: Oxford University Press.
Trích dẫn kiểu ChicagoHeadway Teacher's Book: Elementary. New York: Oxford University Press, 1993.
Deismireacht MLAHeadway Teacher's Book: Elementary. New York: Oxford University Press, 1993.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.