Argraffiad Saesneg gwreiddiol = Origianl English edition: London : Doubleday, 2000.
Addasiad Cymraeg gan = Welsh adaptation by: Menna Davies.
Heddiw, ryw ddydd by Toby Forward. ISBN 1902416333. Published by Cymdeithas Lyfrau Ceredigion in 2000. Publication and catalogue information, links to buy online and reader comments.