Argraffiad Saesneg gwreiddiol = Original English edition: London : Orchard Books, 2000.
Addasiad Cymraeg gan = Welsh adaptation by: Menna Davies.
Ti'n siŵr o dyfu, Alecs by Andrea Shavick. ISBN 1902416376. Published by Cymdeithas Lyfrau Ceredigion in 2001. Publication and catalogue information, links to buy online and reader comments.