Cyhoeddwyd yn wreiddiol yn Saesneg yn 1990 = Originally published in English in 1990.
OBNB doesn't sell books, but you may be able to find a copy at one of these websites:
Nab Wrc by Roald Dahl. ISBN 9781849671170. Published by Rily in 2012. Publication and catalogue information, links to buy online and reader comments.
