Yule, G. (2006). The study of language (3rd ed.). Cambridge University Press.
Dyfyniad Arddull ChicagoYule, George. The Study of Language. 3rd ed. Cambridge [England]: Cambridge University Press, 2006.
Dyfyniad MLAYule, George. The Study of Language. 3rd ed. Cambridge University Press, 2006.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.