- A1/14
- Ffeil
- 1988-1989
Dangos 6 canlyniad
Disgrifiad archifol- A1/18
- Ffeil
- 1989
Valleys Project: Report on the Data Collection Phase
- R1/1
- Ffeil
- 1987
- A1/13
- Ffeil
- 1988-1989
The South Wales Valleys: an Agenda for Action: Progress Reports
- R2/6
- Ffeil
- 1988-1991