Bioleg
Subtitle: y llyfr gwaith haen uwch : gydag atebion
By: addasiad Cymraeg gan Colin Isaac ; golygwyd gan Richard Parsons.
Contributors: Parsons, Richard.; Isaac, Colin.; University of Wales, Aberystwyth. Centre for Educational Studies.
Series: Gwyddoniaeth ddwbl TGAU; GCSE double science
Publisher: Y Ganolfan Astudiaethau Addysg
Published: 2001
Place of publication: Aberystwyth
Language: wel
Number of pages: 116
Subjects: Biology -- Study and teaching (Secondary) -- Wales.; General Certificate of Secondary Education -- Study guides.
Notes: Addasiad Cymraeg gan = Welsh adaptation by : Colin Isaac.

Argraffiad Saesneg gwreiddiol = Original English edition : Kirkby-in-Furness : Coordination Group Publications, 2001.