(2005). Face2face: Elementary teacher's book. New York, US: Cambridge University Press.
Dyfyniad Arddull ChicagoFace2face: Elementary Teacher's Book. New York, US: Cambridge University Press, 2005.
Dyfyniad MLAFace2face: Elementary Teacher's Book. New York, US: Cambridge University Press, 2005.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.