Plaid Cymru: Hydro Group Papers,
- GB 0210 HYDRO
- Fonds
- 1983-1986 /
Constitution and rules of the Hydro Group and minutes of meetings, 1983-1986; correspondence, 1983-1986; copies of Tonnau/Waves, 1984-1986; study reports and questionnaires, 1983-1984.
Plaid Cymru. Hydro Group.