Argraffiad Saesneg gwreiddiol = Original English edition: London : Andersen Press, 2000.
Addasiad Cymraeg gan = Welsh adaptation by: Menna Davies.
Het y bwgan brain by Ken Brown. ISBN 1902416252. Published by Cymdeithas Lyfrau Ceredigion in 2000. Publication and catalogue information, links to buy online and reader comments.