Argraffiad Saesneg gwreiddiol = Original English edition : London : Andersen Press, 1999.
Addasiad Cymraeg gan = Welsh adaptation by : Dylan Williams.
Y gôt anghywir by Hiawyn Oram. ISBN 1902416201. Published by Cymdeithas Lyfrau Ceredigion in 1999. Publication and catalogue information, links to buy online and reader comments.