Aitchison, J. (2001). Language change: Progress or decay? (3rd ed.). Cambridge University Press.
Dyfyniad Arddull ChicagoAitchison, Jean. Language Change: Progress or Decay? 3rd ed. Cambridge [England] ; New York: Cambridge University Press, 2001.
Dyfyniad MLAAitchison, Jean. Language Change: Progress or Decay? 3rd ed. Cambridge University Press, 2001.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.