Soars, J., Soars, L., & Wheeldon, S. (2007). New headway: Upper-intermediate : workbook with key. Oxford: Oxford University Press.
Dyfyniad Arddull ChicagoSoars, John., Liz Soars, và Sylvia Wheeldon. New Headway: Upper-intermediate : Workbook With Key. Oxford: Oxford University Press, 2007.
Dyfyniad MLASoars, John., Liz Soars, và Sylvia Wheeldon. New Headway: Upper-intermediate : Workbook With Key. Oxford: Oxford University Press, 2007.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.