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Contents: Emrys ap Iwan / gan Ellis Lynne Williams _ Ein dyled i Emrys ap Iwan / gan Gwynfor Evans.
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Y Ddarlith flynyddol : cyfrol 1 a 2, 1981 a 1982. ISBN 0905349237. Published by Gwasanaeth Llyfrgell Clwyd in 1983. Publication and catalogue information, links to buy online and reader comments.