(2000). Matrix: Intermediate : student's book. Oxford: Oxford University Press.
Dyfyniad Arddull ChicagoMatrix: Intermediate : Student's Book. Oxford: Oxford University Press, 2000.
Dyfyniad MLAMatrix: Intermediate : Student's Book. Oxford: Oxford University Press, 2000.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.