Cyfyngwch eich canlyniadau yn ôl:
- Pob un
- Welsh Joint Education Committee., 4 canlyniadau
- National Youth Orchestra of Wales., 3 canlyniadau
- Davison, Arthur., 3 canlyniadau
- Welsh Arts Council., 2 canlyniadau
- Great Britain. Welsh Office., 1 canlyniadau
- Welsh Books Council, 1 canlyniadau
- Union of Welsh Publishers and Booksellers., 1 canlyniadau