Arg. Saesneg gwreiddiol = Original English ed.: Llundain: Magi Publications, 1999.
Lluniau ar y cloriau tu mewn = Illustrations on inside covers.
Rownd a rownd y rwdins by Tony Bonning. ISBN 1859026737. Published by Gwasg Gomer in 1999. Publication and catalogue information, links to buy online and reader comments.