Tystysgrif Gyffredinol addysg Uwchradd
Subtitle: y meini prawf cenedlaethol = General Certificate of Secondary Education : the national criteria
By: Department of Education and Science, Welsh Office. Cymraeg = Welsh.
Contributors: Great Britain. Welsh Office.; Great Britain. Department of Education and Science.
Publisher: HMSO
Published: 1985
Place of publication: London
Language: eng
Notes: Welsh and English texts.