Cyhoeddwyd y fersiwn Saesneg/English version published: Heinemann Educational, 1991.
At head of title: SSMG.
Perforated for inclusion in ring binder.
Mathemateg Heinemann. 8. Llyfr gwaith : meistr-gopïau i'w llungopïo. ISBN 1856449408. Published by Canolfan Astudiaethau Addysg in 1995. Publication and catalogue information, links to buy online and reader comments.