Cover image not available
Arg. Saesneg gwreiddiol = Original English ed.: Cambridge: Cambridge University Press, 1983.
Uwchben teitl clawr = At head of cover title: Rhaglen Ddatblygu Addysg Hyblyg.
OBNB doesn't sell books, but you may be able to find a copy at one of these websites:
Egni a bywyd. Published by Uned Iaith Genedlaethol Cymru CBAC in 1996. Publication and catalogue information, links to buy online and reader comments.