Argraffiad Saesneg gwreiddiol = Original English edition : Oxford : Oxford University Press, 1996.
Addasiad Cymraeg gan = Welsh adaptation by : Emily Huws.
Y siarc slei, seimlyd by Tessa Krailing. ISBN 0861745078. Published by Gwasg Addygol Drake in 2002. Publication and catalogue information, links to buy online and reader comments.