Allwedd mathemateg 9
By: Roma Harvey ... [et al.] ; [cyfieithwyd gan Ffion E. Kervegant].
Contributors: Harvey, Roma.; Kervegant, Ffion.
Publisher: Y Ganolfan Astudiaethau Addysg
Published: 2002
Place of publication: Aberystwyth
Language: wel
Number of pages: 345
Subjects: Mathematics -- Study and teaching (Secondary) -- Wales.
Work titles: Key maths 9. Welsh.
Notes: Addasiad Cymraeg gan = Welsh adaptation by : Ffion E. Kervegant.

Argraffiad Saesneg gwreiddiol = Original English edition : Cheltenham : Stanley Thornes, 2000.

Addasiad Cymraeg o = Welsh adaptation of : Key maths 9.