Arg. Saesneg gwreiddiol = Original English ed.: London: Heineman Educational, 1990.
Addasiad Cymraeg gan = Welsh adaptation by: Eurwen Salisbury.
Iesu a dechreuad yr eglwys by Gwyneth Windsor. ISBN 1856443493. Published by Canolfan Astudiaethau Addysg in 1997. Publication and catalogue information, links to buy online and reader comments.