Cyhoeddwyd yn wreiddiol gan = Originally published by : Christian Focus Publications.
Addasiad Cymraeg gan = Welsh adaptation by : Eiflyn Roberts.
Ar y ffordd : Llyfr 1 (3-9 oed). ISBN 185994471X. Published by Cyhoeddiadau'r Gair in 2003. Publication and catalogue information, links to buy online and reader comments.