Dyfyniad APA

Ashley A. (2007). Oxford Correspondence Workbook (New Edition.). New York, Oxford University Press, 2007.

Dyfyniad Arddull Chicago

Ashley A. Oxford Correspondence Workbook. New Edition. New York, Oxford University Press, 2007, 2007.

Dyfyniad MLA

Ashley A. Oxford Correspondence Workbook. New Edition. New York, Oxford University Press, 2007, 2007.

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