Dyfyniad APA

Crystal, D. (1997). The Cambridge encyclopedia of language (2nd ed.). Cambridge University Press.

Dyfyniad Arddull Chicago

Crystal, David. The Cambridge Encyclopedia of Language. 2nd ed. Cambridge ; New York: Cambridge University Press, 1997.

Dyfyniad MLA

Crystal, David. The Cambridge Encyclopedia of Language. 2nd ed. Cambridge University Press, 1997.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.