Bibliography: p.149. _ Includes index.
OBNB doesn't sell books, but you may be able to find a copy at one of these websites:
Duw a phob daioni : llawlyfr ar foeseg Gristnogol by Harri Williams. ISBN 0850885906. Published by Gwasg Gomer in 1978. Publication and catalogue information, links to buy online and reader comments.
