Argraffiad Saesneg gwreiddiol = Original English edition : London : HarperCollins Publishers, 1999.
Addasiad Cymraeg gan = Welsh adaptation by : Gwynne Williams.
Chwaden mewn wagen by Jez Alborough. ISBN 1855965984. Published by Dref Wen in 2003. Publication and catalogue information, links to buy online and reader comments.