Cyfyngwch eich canlyniadau yn ôl:
- Pob un
- Cymdeithas yr Iaith Gymraeg., 1 canlyniadau
- Williams, Jac L., 1 canlyniadau
- James, Dan Lynn, 1 canlyniadau
- Bere, Cliff, 1915-1997, 1 canlyniadau
- Rhieni Dros Addysg Gymraeg (Organization), 1 canlyniadau
- Jones, Bobi, 1929-2017, 1 canlyniadau
- Aaron, Richard I. (Richard Ithamar), 1901-1987, 1 canlyniadau
- Pob un
- Plaid Cymru, 1 canlyniadau
- University College of Wales (Aberystwyth, Wales), 1 canlyniadau
- Cymdeithas yr Iaith Gymraeg., 1 canlyniadau
- Webb, Harri, 1920-1994, 1 canlyniadau
- Welsh Republican Movement., 1 canlyniadau
- National Commemoration Association., 1 canlyniadau
- Welsh Republican Movement -- Archives., 1 canlyniadau
- Celtic League., 1 canlyniadau
- Free Wales Army., 1 canlyniadau
- Cymdeithas Cyfamod y Cymry Rhydd., 1 canlyniadau
- Pob un
- Bilingualism -- Wales, 5 canlyniadau
- Political parties -- Wales., 1 canlyniadau
- Aberystwyth (Wales), 1 canlyniadau
- Education -- Wales, 1 canlyniadau
- Broadcasting -- Wales., 1 canlyniadau
- Welsh language -- Usage, 1 canlyniadau
- Education, Bilingual -- Wales, 1 canlyniadau
- Politicians -- Wales, 1 canlyniadau
- Welsh language -- Government policy -- Wales., 1 canlyniadau
- Pressure groups -- Wales, 1 canlyniadau
