Blwch yn cynnwys cerdiau a 4 dis = Box contains cards and 4 dice.
Gemau glas : casgliad o gemau mathemategol sy'n cyd-fynd â gwaith Modwl 4, Mathemateg Cynradd Caergrawnt. ISBN 1857870522. Published by Canolfan Astudiaethau Iaith in 1993. Publication and catalogue information, links to buy online and reader comments.