Argraffiad Saesneg gwreiddiol = Original English edition: Cheltenham : Stanley Thornes, 1995.
Addasiad Cymraeg gan = Welsh adaptation by: Ffion E. Kervegant.
Allwedd mathemateg 7¹. ISBN 1856444279. Published by Canolfan Astudiaethau Addysg in 2000. Publication and catalogue information, links to buy online and reader comments.