Harding, K., & Taylor, L. (2006). International express: Intermediate. New York: Oxford University Press.
Dyfyniad Arddull ChicagoHarding, Keith., và Liz Taylor. International Express: Intermediate. New York: Oxford University Press, 2006.
Dyfyniad MLAHarding, Keith., và Liz Taylor. International Express: Intermediate. New York: Oxford University Press, 2006.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.