Argraffiad Saesneg gwreiddiol = Original English edition : London : Walker, 1997.
Yn cynnwys mynegai = Includes index.
Addasiad Cymraeg gan = Welsh adaptation by : Ken a Sian Owen.
Hedfan a hofran by Steve Parker. ISBN 1855964910. Published by CBAC in 2001. Publication and catalogue information, links to buy online and reader comments.