Trin data.
Clissold, Caroline.
Jones, Lynwen Rees.
University of Wales, Aberystwyth.Centre for Educational Studies.
Aberystwyth : Canolfan Astudiaethau Addysg,
c2010.
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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