| 326 | Hydropower developments and the National Rivers Authority |
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| 327 | 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 |
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| 328 | The Ecology of Four Scarce Wetland Molluscs |
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| 329 | Recreational waterway byelaws in the Anglian region |
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| 330 | A brief guide to the medway |
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| 331 | A brief guide to the thames |
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| 332 | Study of the River Stour, Kent |
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| 333 | The source : a guide to NRA services |
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| 334 | We care for the environment : could you? |
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| 335 | What's happening in the North East |
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| 336 | What's happening in the South West |
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| 337 | The River Thame : catchment review : march 1996 |
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| 338 | Determining The Causes Of 'Apparent Eutrophication' Effects |
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| 339 | Public participation and the Water Framework Directive |
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| 340 | Guide to the Medway navigation 1994 |
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| 341 | Agriculture and the Water Framework Directive |
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| 342 | Achieving the quality : annex : programme of environmental obligations agreed by the Secretary of State for the Environment, Transport and the Regions and for Wales for individual water companies |
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| 343 | A Demonstration Of The Feasibility Of Soilpacs |
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| 344 | Diffuse pollution and the water framework directive |
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| 345 | The Great Ouse (Bedford Ouse) fact file |
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| 346 | The River Lark project Final Report |
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| 347 | Recreational waterways in the anglian region |
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| 348 | Conoeists' guide to the River Wye |
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| 349 | The Nidd and Wharfe catchment (river factfiles) |
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| 350 | Whitacre-Shustoke Reservoir improvements. The sedimentary phosphorus content on the Lower Shustoke Reservoir |
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