Argraffiad Saesneg wreiddiol = Original English edition: Lion Publishing, 1989.
Addasiad Cymraeg gan = Welsh adaptation by: R. Maldwyn Thomas.
Chwedl y tair coeden by Angela Elwell Hunt. ISBN 1859941060. Published by Cyhoeddiadau'r Gair in 1997. Publication and catalogue information, links to buy online and reader comments.