Ffynonellau
Subtitle: llawlyfr yr athro
By: Bethan Phillips.
Contributors: Canolfan Astudiaethau Addysg.
Series: Gwreiddiau
Publisher: Canolfan Astudiaethau Addysg
Published: 1991
Place of publication: Aberystwyth
Language: wel
Number of pages: 31
Subjects: Wales -- History -- Sources -- Study and teaching (Elementary)