(2002). Matrix: Pre-intermediate : student's book. Oxford: Oxford University Press.
Dyfyniad Arddull ChicagoMatrix: Pre-intermediate : Student's Book. Oxford: Oxford University Press, 2002.
Dyfyniad MLAMatrix: Pre-intermediate : Student's Book. Oxford: Oxford University Press, 2002.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.