Soars, L., & Liz & John Soars with Jop Devoy. (1998). New Headway English Course: Upper-intermediate (Workbook without key). Oxford: Oxford University Press.
Dyfyniad Arddull ChicagoSoars, Liz, và Liz & John Soars with Jop Devoy. New Headway English Course: Upper-intermediate (Workbook Without Key). Oxford: Oxford University Press, 1998.
Dyfyniad MLASoars, Liz, và Liz & John Soars with Jop Devoy. New Headway English Course: Upper-intermediate (Workbook Without Key). Oxford: Oxford University Press, 1998.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.