226 | Monitoring the trophic state of reservoirs
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227 | Flood defences : the Lower Witham strategy |
228 | Water Quality of the Humber Estuary 1986 |
229 | Freshwater Algal Flora of the British Isles |
230 | Green Household Index - The Eco-Cal |
231 | Guardians of the water environment (bilingual document) |
232 | Pesticides in the aquatic environment 1996 |
233 | Constructive thinking : save water, save the environment |
234 | The Environment Agency navigations : Thames, Anglian, Southern |
235 | Sustainable water resources for the future |
236 | Pollution control on the River Alt |
237 | A Review of the Application of |
238 | Ecology and the Water Framework Directive |
239 | Snapshots of the environment : regulating major industry |
240 | 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 |
241 | Review of the microtox toxicity test |
242 | Silt - and its effects on the river |
243 | MCERTS : the Environment Agency's monitoring certification scheme |
244 | The effects of predation on salmon fisheries |
245 | Fisheries Assessment Software within the Environment Agency |
246 | Bewdley flood defences : the invisible defences |
247 | The story of a river : Ripples 1 |
248 | Recreation strategy for the River Thames |
249 | The river Aire conservation within the catchment : a summary of survey methods and information held on the wildlife of the river Aire catchment |
250 | Navigations in the Anglian region (EA) |