Dyfyniad APA

Gairns R. Ruth & Redman S. Stuart. (2005). Natural English. Pre-intermediate: Class Audio CDs. New York, Oxford University Press, 2005.

Dyfyniad Arddull Chicago

Gairns R. Ruth and Redman S. Stuart. Natural English. Pre-intermediate: Class Audio CDs. New York, Oxford University Press, 2005, 2005.

Dyfyniad MLA

Gairns R. Ruth and Redman S. Stuart. Natural English. Pre-intermediate: Class Audio CDs. New York, Oxford University Press, 2005, 2005.

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