Soars, L., & Soars, J. (2001). American Headway. New York: Oxford University Press.
Trích dẫn kiểu ChicagoSoars, Liz, và John Soars. American Headway. New York: Oxford University Press, 2001.
Deismireacht MLASoars, Liz, và John Soars. American Headway. New York: Oxford University Press, 2001.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.