Pwy a wyr?
Subtitle: un ar bymtheg o gwisiau am Gymru a'r Cymry = Who knows? : sixteen quizzes about Wales and the Welsh
By: casglwyd gan = collected by Gareth Jones. Ail gyfrol = Volume two.
Publisher: Cynyrchiadau Caerffili
Published: 1976
Place of publication: Caerffili
Language: wel
Number of pages: 24
Notes: Text in Welsh and English.