Arg. Saesneg gwreiddiol = Original English ed.: Harlow: Longman Group, 1994.
Addasiad Cymraeg gan = Welsh adaptation by: Gwenan Creunant.
Carys a'r cipiwr by Malorie Blackman. ISBN 1901358208. Published by Camfa in 1997. Publication and catalogue information, links to buy online and reader comments.