Arg. Saesneg gwreiddiol = Original English ed.: Harlow: Longman Group, 1994.
Addasiad Cymraeg gan = Welsh adaptation by: Siân Vaughan Evans Davies.
Letang a Sioned yn dod i'r adwy by Beverley Naidoo. ISBN 1901358259. Published by Camfa in 1997. Publication and catalogue information, links to buy online and reader comments.