Argraffiad Saesneg gwreiddiol = Original English edition : London : Orchard Books, 2005.
Addasiad Cymraeg gan = Welsh adaptation by : Gwen Angharad Jones.
Tili a'r geifr by Joan Lingard. ISBN 1845120299. Published by Cymdeithas Lyfrau Ceredigion in 2005. Publication and catalogue information, links to buy online and reader comments.