Dyfyniad APA

Crystal, D. (2003). English as a global language (2nd ed.). Cambridge University Press.

Dyfyniad Arddull Chicago

Crystal, David. English as a Global Language. 2nd ed. New York ; New Delhi: Cambridge University Press, 2003.

Dyfyniad MLA

Crystal, David. English as a Global Language. 2nd ed. Cambridge University Press, 2003.

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