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