P1073 Testun Cymraeg / Saesneg = Welsh / English text.
Buy a copy
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Gwasanaeth Rhybudd Llifogydd Rhydymwyn = Rhydymwyn Flood Warning Service by Rhydymwyn Flood Warning Service. Published by Asiantaeth yr Amgylchedd in 2006. Publication and catalogue information, links to buy online and reader comments.