1 | The rehabilitation of the River Taff |
2 | A report on the investigation of the Taff litter problem |
3 | The investigation of the Taff litter problem : report no. PL/EAE/89/2 |
4 | The impact of ferruginous minewater break-outs on the environmental quality of the Rivers Rhymney, Ebbw and Sirhowy : summary report |
5 | A survey of ferruginous minewater impacts in the Welsh coalfields |
6 | A survey of ferruginous minewater impacts in the Welsh coalfields |