Arg. Saesneg gwreiddiol = Original English ed.: London : A. & C. Black, 2009.
Cyfieithydd/golygydd = Translator/editor: Lynwen Rees Jones.
"Adnoddau addysgu Mathemateg y gellir eu haddasu, caniateir llungopïo" - ar y clawr = on cover.
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Trin data. Blwyddyn 3 by Caroline Clissold. ISBN 9781845213688. Published by Canolfan Astudiaethau Addysg in 2010. Publication and catalogue information, links to buy online and reader comments.
