Y Ddeddf Uno, 1536
Subtitle: (y Cefndir a'r Canlyniadau)
By: Golygwyd gan W. Ambrose Bebb
Publisher: Plaid Genedlaethol Cymru
Published: 1937
Place of publication: Caernarfon
Language: wel
Notes: Articles by W.A. Bebb and others.