Arg Almaeneg gwreiddiol = Original German ed: Zürich: Nord-Süd Verlag, 1987. - Addasiad Saesneg = English adaptation: Zürich: Nord-Süd Verlag, 1987.
Addasiad Cymraeg = Welsh adaptation by: Juli Paschalis.
Yr arth bach gwyn by Hans De Beer. ISBN 086174022X. Published by Gwasg Addysgol Drake. Publication and catalogue information, links to buy online and reader comments.