Arg. Saesneg gwreiddiol = Original English ed.: Llundain: Picadilly Press, 1998.
Addasiad Cymraeg gan = Welsh adaptation by: Hedd a Non ap Emlyn.
Sgarff Barti by Sally Chambers. ISBN 1855963523. Published by Gwasg y Dref Wen in 1998. Publication and catalogue information, links to buy online and reader comments.