Arg. Saesneg gwreiddiol = Original English ed: Oxford: Heinemann Educational, 1989.
Yn cynnwys mynegai = Includes index.
Iddewiaeth by Arye Forta. ISBN 1853570826. Published by Canolfan Genedlaethol Addysg Grefyddol in 1995. Publication and catalogue information, links to buy online and reader comments.