Arg Ffrangeg gwreiddiol = Original French ed: Paris: Editions Gallimard, 1990.
Arg Saesneg = English ed: London: Moonlight, 1990.
Dan y ddaear by Danièle Bour. ISBN 0861740092. Published by Gwasg Addysgol Drake in 1991. Publication and catalogue information, links to buy online and reader comments.