Dyfyniad APA

Bowler, B., & Parminter, S. (2001). New headway pronunciation: Pre-intermediate. Oxford University Press.

Dyfyniad Arddull Chicago

Bowler, Bill, and Sue Parminter. New Headway Pronunciation: Pre-intermediate. Oxford: Oxford University Press, 2001.

Dyfyniad MLA

Bowler, Bill, and Sue Parminter. New Headway Pronunciation: Pre-intermediate. Oxford University Press, 2001.

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