Dyfyniad APA

Denning, K. M., Kessler, B., & Leben, W. R. (2006). English vocabulary elements (2nd ed.). Oxford University Press.

Dyfyniad Arddull Chicago

Denning, Keith M., Brett Kessler, and William Ronald Leben. English Vocabulary Elements. 2nd ed. Oxford ; New York: Oxford University Press, 2006.

Dyfyniad MLA

Denning, Keith M., et al. English Vocabulary Elements. 2nd ed. Oxford University Press, 2006.

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