Argraffiad Saesneg gwreiddiol = Original English edition : London : Abelard-Schuman, 1982.
Argraffiad Cymraeg gwreiddiol = Original Welsh edition : 1993.
Annwyl Sw by Rod Campbell. ISBN 1855964635. Published by Gwasg y Dref Wen in 2001. Publication and catalogue information, links to buy online and reader comments.