Argraffiad Saesneg gwreiddiol = Original English edition : London : A & C Black Publishers, 1999.
Addasiad Cymraeg gan = Welsh adaptation by : Non Vaughan Williams.
Teleri tynnu coes by Colin West. ISBN 9781843235460. Published by Gwasg Gomer in 2006. Publication and catalogue information, links to buy online and reader comments.