1 | The Dee regulation scheme (bilingual) |
2 | The River Dee catchment management plan : consultation report : June 1994 |
3 | Water Quality and Freshwater Flow in the Thames Tideway in Relation to Salmon Migration, with particular reference to the effects of low flow in 1990 |
4 | Graphical representation of certain metals and organics concentrations in relation to flow rates and sampling times for some of the rivers in District 6 |