Cyfyngwch eich canlyniadau yn ôl:
- Pob un
- Labor disputes -- Wales, 3 canlyniadau
- Strikes and lockouts -- Wales, 2 canlyniadau
- Wages -- Coal miners -- Wales, South., 1 canlyniadau
- Strikes and lockouts -- Coal mining -- Wales, South., 1 canlyniadau
- Coal mine accidents -- Wales., 1 canlyniadau
- Coal Strike, Great Britain, 1984-1985, 1 canlyniadau
- Labor unions -- Wales, 1 canlyniadau