Argraffiad Saesneg gwreiddiol = Original English edition : Oxford : Oxford University Press, 2003.
Addasiad Cymraeg gan = Welsh adaptation by : Dafydd a Mandi Morse.
Stori Gwenllian : y ferch sy'n codi cwt, codi stêm a chodi gwrychyn! by Helena Pielichaty. ISBN 1855967073. Published by Gwasg y Dref Wen in 2006. Publication and catalogue information, links to buy online and reader comments.