Argraffiad Saesneg gwreiddiol = Original English edition : Kibworth Beauchamp : Brown Watson, 2001.
Addasiad Cymraeg gan = Welsh adaptation by : Myrddin ap Dafydd.
Un noswyl Nadolig : ymweliad gan Siôn Corn by Clement Clarke Moore. ISBN 0863819141. Published by Gwasg Carreg Gwalch in 2004. Publication and catalogue information, links to buy online and reader comments.