| Teitl y Gyfres | European Information Service (published by Local Government International Bureau) |
|---|---|
| Manylion y Gyfres | No.123, September 1991, p23-4 |
| Dyddiad Cyhoeddi | September 1991 |
| Math o Gynnwys | News |
| Categorïau Pwnc | Environment |
| Teitl y Gyfres | European Information Service (published by Local Government International Bureau) |
|---|---|
| Manylion y Gyfres | No.123, September 1991, p23-4 |
| Dyddiad Cyhoeddi | September 1991 |
| Math o Gynnwys | News |
| Categorïau Pwnc | Environment |