Argraffiad Saesneg gwreiddiol = Original English edition : Oxford : Lion, 1998.
Addasiad Cymraeg gan = Welsh adaptation by : Delyth Wyn.
Llyfr hwyl y Nadolig i blant bach by Su Box. ISBN 185994177X. Published by Cyhoeddiadau'r Gair in 1999. Publication and catalogue information, links to buy online and reader comments.