Rhigymau rhif Sami
By: Maisie Griffiths.
Contributors: Canolfan Astudiaethau Iaith.
Publisher: Canolfan Astudiaethau Iaith
Published: 1993
Place of publication: Bangor
Language: wel
Number of pages: 8
Subjects: Mathematics -- Study and teaching (Elementary)
Notes: Teitl clawr = Cover title.