SMP 11-16.
Araul.
Welsh Joint Education Committee.
National Language Unit of Wales.
School Mathematics Project.
Caerdydd : Uned Iaith Genedlaethol Cymru CBAC,
1998.
Addasiad Cymraeg gan = Welsh adaptation by: Cwmni ARAUL.
Testun tu mewn y clawr cefn = Text on inside of back cover.
Mathematics
Mathematics