226 | On duty round the clock : fact file |
227 | The National Rivers Authority : fact file |
228 | Evaluation of the Close Season in Canals |
229 | Achieving the quality (Bilingual) : Sicrhau Ansawdd (Bilingual) |
230 | Factors affecting the dispersal of coarse fish |
231 | Sustainability examples from the USA and Canada |
232 | Changes to the water abstraction licensing system |
233 | Determining The Freshwater Flow Needs Of Estuaries |
234 | The Trophic Diatom Index: A User's Manual; |
235 | Duties and powers of the Environment Agency |
236 | Hydropower developments and the National Rivers Authority |
237 | Biological investigation of the Common Lake Stream |
238 | The Ecology of Four Scarce Wetland Molluscs |
239 | Endocrine Disruption in the Marine Environment |
240 | Study of the River Stour, Kent |
241 | The source : a guide to NRA services |
242 | The River Thame : catchment review : march 1996 |
243 | Phosphate in the cut-off channel |
244 | Determining The Causes Of 'Apparent Eutrophication' Effects |
245 | Public participation and the Water Framework Directive |
246 | Guide to the Medway navigation 1994 |
247 | Agriculture and the Water Framework Directive |
248 | Achieving the quality : annex : programme of environmental obligations agreed by the Secretary of State for the Environment, Transport and the Regions and for Wales for individual water companies |
249 | A Demonstration Of The Feasibility Of Soilpacs |
250 | Diffuse pollution and the water framework directive |