Argraffiad Saesneg gwreiddiol = Original English edition : London : Little Tiger, 2007.
Addasiad Cymraeg gan = Welsh adaptation by : Elin Meek.
Cyfrinachau parti cysgu'r dywysoges by Hilary Robinson. ISBN 9781855967519. Published by Gwasg y Dref Wen in 2007. Publication and catalogue information, links to buy online and reader comments.