Arg. Saesneg gwreiddiol = Original English ed.: Llundain: Walker Books, 1993.
Addasiad Cymraeg gan = Welsh adaptation by: Mair Treharne.
Rydyn ni'n mynd i hela arth by Michael Rosen. ISBN 1860853579. Published by Uned Iaith Genedlaethol Cymru CBAC in 1999. Publication and catalogue information, links to buy online and reader comments.