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 | Site supervision of the Beach Nourishment Scheme |
233 | Changes to the water abstraction licensing system |
234 | Determining The Freshwater Flow Needs Of Estuaries |
235 | The Trophic Diatom Index: A User's Manual; |
236 | Shoreline management plans in the Anglian region |
237 | The future of shoreline management : conference papers |
238 | Duties and powers of the Environment Agency |
239 | Hydropower developments and the National Rivers Authority |
240 | Biological investigation of the Common Lake Stream |
241 | Devon area internal report - the kingsbridge estuary - survey of the benthic microinvertebrate infauna (october 1990) for the proposed classification of estuaries in the south western region |
242 | The Ecology of Four Scarce Wetland Molluscs |
243 | Recreational waterway byelaws in the Anglian region |
244 | Endocrine Disruption in the Marine Environment |
245 | A brief guide to the medway |
246 | A brief guide to the thames |
247 | The source : a guide to NRA services |
248 | We care for the environment : could you? |
249 | What's happening in the North East |
250 | What's happening in the South West |