Addasiad Cymraeg gan = Welsh adaptation by : Tegid Roberts.
Cyhoeddwyd yn wreiddiol gan = Originally published by : Christian Focus Publications.
Ar y ffordd : llyfr 4 (3-9 oed). ISBN 1859945074. Published by Cyhoeddiadau'r Gair in 2004. Publication and catalogue information, links to buy online and reader comments.