Arg. Saesneg gwreiddiol = Original English ed.: Cambridge: Cambridge University Press, 1998.
Addasiad Cymraeg gan = Welsh adaptation by: Cwmni ARAUL.
Testun tu mewn y clawr cefn = Text on inside of back cover.
SMP 11-16. Llyfr A8. ISBN 1860853951. Published by Uned Iaith Genedlaethol Cymru CBAC in 1998. Publication and catalogue information, links to buy online and reader comments.