Argraffiad Saesneg gwreiddiol = Original English edition: London : Andersen Press, 1999.
Addasiad gan = Adaptation by: Dylan Williams.
Fi a'r gath? by Satoshi Kitamura. ISBN 1902416244. Published by Cymdeithas Lyfrau Ceredigion in 2000. Publication and catalogue information, links to buy online and reader comments.