Argraffiad Saesneg gwreiddiol = Original English edition: London : Usborne Publishing, 1990.
Addasiad Cymraeg gan = Welsh adaptation by: Emily Huws.
Mochyn ar goll by Heather Amery. ISBN 1859029604. Published by Gwasg Gomer in 2001. Publication and catalogue information, links to buy online and reader comments.