Carr, G. F., & Rauch, I. (1983). Language Change. Indiana University Press.
Dyfyniad Arddull ChicagoCarr, Gerald F., and Irmengard Rauch. Language Change. Bloomington: Indiana University Press, 1983.
Dyfyniad MLACarr, Gerald F., and Irmengard Rauch. Language Change. Indiana University Press, 1983.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.