Gairns, R. (2008). Oxford word skills: Basic. Oxford: Oxford University Press.
Dyfyniad Arddull ChicagoGairns, Ruth. Oxford Word Skills: Basic. Oxford: Oxford University Press, 2008.
Dyfyniad MLAGairns, Ruth. Oxford Word Skills: Basic. Oxford: Oxford University Press, 2008.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.