Cyhoeddwyd y fersiwn Saesneg yn wreiddiol = Original English ed. published: London, A & C Black, c2008.
'Adnoddau addysgu mathemateg y gellir eu haddasu, caniateir llungopïo' - clawr = cover.
Deall siapiau a mesurau. Blwyddyn 2 by Hilary Koll. ISBN 9781845214456. Published by Canolfan Astudiaethau Addysg in 2011. Publication and catalogue information, links to buy online and reader comments.