Argraffiad Saesneg gwreiddiol = Original English edition : Cambridge : Cambridge University Press, 1999.
Addasiad Cymraeg gan = Welsh adaptation by : Cymen Cyf.
Mathemateg pen ar gyfer oedrannau 5 i 7. Llyfr athrawon by Anita Straker. ISBN 1860854338. Published by Uned Iaith Genedlaethol Cymru CBAC in 1999. Publication and catalogue information, links to buy online and reader comments.