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Ar ben y dudlaen deitl = At head of t.p.: Hydref, cyfnod allweddol 1, radio.
Cyhoeddwyd i fynd gyda rhaglen radio = Radio tie-in.
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Adnoddau cerdd : nodiadau i'r athro by Elen Rhys. Published by BBC Cymru Wales in 1998. Publication and catalogue information, links to buy online and reader comments.