226 | Freshwater Algal Flora of the British Isles |
227 | Guardians of the water environment (bilingual document) |
228 | Constructive thinking : save water, save the environment |
229 | The Environment Agency navigations : Thames, Anglian, Southern |
230 | Sustainable water resources for the future |
231 | Pollution control on the River Alt |
232 | A Review of the Application of |
233 | Ecology and the Water Framework Directive |
234 | Snapshots of the environment : regulating major industry |
235 | The introduction of an effective market testing programme for the flood defence function of the National Rivers Authority in the North West Region : certificate in management |
236 | Review of the microtox toxicity test |
237 | Silt - and its effects on the river |
238 | MCERTS : the Environment Agency's monitoring certification scheme |
239 | The effects of predation on salmon fisheries |
240 | Fisheries Assessment Software within the Environment Agency |
241 | Bewdley flood defences : the invisible defences |
242 | The story of a river : Ripples 1 |
243 | Recreation strategy for the River Thames |
244 | The river Aire conservation within the catchment : a summary of survey methods and information held on the wildlife of the river Aire catchment |
245 | Navigations in the Anglian region (EA) |
246 | The Atlantic Salmon Trust Journal 2011 |
247 | Holding back the sea - ripples 3 |
248 | Fish, fisheries and the Water Framework Directive |
249 | A history of the By Brook |
250 | Coastal flooding in the North West |