Argraffiad Saesneg gwreiddiol = Original English edition: Harlow : Longman, 1994.
Addasiad Cymraeg gan = Welsh adaptation by: Emily Huws.
Cwmwl sgrwbiratsh by Joyce Dunbar. ISBN 1860852300. Published by Uned Iaith Genedlaethol Cymru CBAC in 1997. Publication and catalogue information, links to buy online and reader comments.