Arg. Saesneg gwreiddiol = Original English ed.: Oxford: Oxford University Press, 1996.
Addasiad Cymraeg gan = Welsh adaptation by: Juli Paschalis, Emily Huws, Glenys M. Roberts.
OBNB doesn't sell books, but you may be able to find a copy at one of these websites:
Coeden ddarllen Rhydychen. 1, Llyfr yr athrawon by Roderick Hunt. ISBN 0861741935. Published by Gwasg Addysgol Drake in 1998. Publication and catalogue information, links to buy online and reader comments.
