176 | Monitoring the trophic state of reservoirs
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177 | Flood defences : the Lower Witham strategy |
178 | Water Quality of the Humber Estuary 1986 |
179 | Freshwater Algal Flora of the British Isles |
180 | Green Household Index - The Eco-Cal |
181 | Guardians of the water environment (bilingual document) |
182 | Pesticides in the aquatic environment 1996 |
183 | Constructive thinking : save water, save the environment |
184 | The Environment Agency navigations : Thames, Anglian, Southern |
185 | Sustainable water resources for the future |
186 | A Review of the Application of |
187 | Ecology and the Water Framework Directive |
188 | Snapshots of the environment : regulating major industry |
189 | 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 |
190 | Review of the microtox toxicity test |
191 | MCERTS : the Environment Agency's monitoring certification scheme |
192 | The effects of predation on salmon fisheries |
193 | Fisheries Assessment Software within the Environment Agency |
194 | Bewdley flood defences : the invisible defences |
195 | The story of a river : Ripples 1 |
196 | Recreation strategy for the River Thames |
197 | Information [on the NRA Anglian Region] |
198 | The river Aire conservation within the catchment : a summary of survey methods and information held on the wildlife of the river Aire catchment |
199 | The Atlantic Salmon Trust Journal 2011 |
200 | Holding back the sea - ripples 3 |