Is-deitl y clawr a'r meingefn = Subtitle on cover and spine: Erthyglau, ysgrifau a sgyrsiau.
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Naddion : detholion o ryddiaith by Islwyn Ffowc Elis. ISBN 0707403189. Published by Gwasg Gee in 1998. Publication and catalogue information, links to buy online and reader comments.
