Argraffiad Saesneg gwreiddiol = Original English edition : London : Orchard Books, 1999.
Addasiad Cymraeg gan = Welsh adaptation by : Huw Ceiriog and Diana Jones.
Mŵ-mŵ, mê-mê, wel dyna i chi le! by Giles Andreae. ISBN 1902416163. Published by Cymdeithas Lyfrau Ceredigion in 1999. Publication and catalogue information, links to buy online and reader comments.