Addasiad Cymraeg gan = Welsh adaptation by : Dylan Williams.
Argraffiad Saesneg gwreiddiol = Original English edition : London : Andersen Press, 2001.
M.W.S.G by Colin McNaughton. ISBN 1902416627. Published by Cymdeithas Lyfrau Ceredigion in 2002. Publication and catalogue information, links to buy online and reader comments.