Radford, A., Atkinson, M., Britain,David, Harald, C., & Spencer, A. (1999). Linguistics: An introduction. Cambridge University Press.
Dyfyniad Arddull ChicagoRadford, Andrew, Martin Atkinson, Britain,David, Clahsen Harald, and Andrew Spencer. Linguistics: An Introduction. Cambridge, UK ; New York, NY: Cambridge University Press, 1999.
Dyfyniad MLARadford, Andrew, et al. Linguistics: An Introduction. Cambridge University Press, 1999.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.