Argraffiad Saesneg gwreiddiol = Original English edition : London : Random House Children's Books, 2004.
Addasiad Cymraeg gan = Welsh adaptation by : Dylan Williams.
Pinsiaid o bupur by Helen Cooper. ISBN 1845120221. Published by Cymdeithas Lyfrau Ceredigion in 2004. Publication and catalogue information, links to buy online and reader comments.