Cyfyngwch eich canlyniadau yn ôl:
- Pob un
- Williams, Gwilym Owen., 1 canlyniadau
- Nicholas, James, 1 canlyniadau
- Jenkins, Emyr, 1938-, 1 canlyniadau
- University College of Wales (Aberystwyth, Wales)., 1 canlyniadau
- University of Wales., 1 canlyniadau
- Rees, Alwyn D., 1 canlyniadau
- Cymdeithas yr Iaith Gymraeg., 1 canlyniadau
- Hughes, Glyn Tegai, 1 canlyniadau
- Thomas, Dylan, 1914-1953, 1 canlyniadau
- BBC Active (Firm), 1 canlyniadau
- Pob un
- Television broadcasting -- Wales., 6 canlyniadau
- Broadcasting -- Wales., 2 canlyniadau
- Gower (Wales), 1 canlyniadau
- Political parties -- Great Britain., 1 canlyniadau
- Great Britain -- Politics and government., 1 canlyniadau
- India -- History -- British occupation, 1765-1947., 1 canlyniadau
- Germany, 1 canlyniadau
- Welsh language -- Government policy -- Wales., 1 canlyniadau
- Decentralization in government -- Wales, 1 canlyniadau
- Education, Bilingual -- Wales., 1 canlyniadau
