Burchfield, R. (1985). The English language. Oxford New York: Oxford University Press.
Dyfyniad Arddull ChicagoBurchfield, Robert. The English Language. Oxford New York: Oxford University Press, 1985.
Dyfyniad MLABurchfield, Robert. The English Language. Oxford New York: Oxford University Press, 1985.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.