| 251 | Hydropower developments and the National Rivers Authority |
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| 252 | Biological investigation of the Common Lake Stream |
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| 253 | 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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| 254 | The Ecology of Four Scarce Wetland Molluscs |
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| 255 | Recreational waterway byelaws in the Anglian region |
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| 256 | Endocrine Disruption in the Marine Environment |
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| 257 | A brief guide to the medway |
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| 258 | A brief guide to the thames |
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| 259 | Study of the River Stour, Kent |
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| 260 | The source : a guide to NRA services |
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| 261 | Phosphate in the cut-off channel |
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| 262 | Determining The Causes Of 'Apparent Eutrophication' Effects |
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| 263 | Public participation and the Water Framework Directive |
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| 264 | Guide to the Medway navigation 1994 |
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| 265 | Agriculture and the Water Framework Directive |
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| 266 | 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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| 267 | A Demonstration Of The Feasibility Of Soilpacs |
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| 268 | Diffuse pollution and the water framework directive |
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| 269 | The River Lark project Final Report |
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| 270 | Recreational waterways in the anglian region |
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| 271 | Conoeists' guide to the River Wye |
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| 272 | The Ely Ouse Essex water transfer scheme |
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| 273 | The Nidd and Wharfe catchment (river factfiles) |
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| 274 | Whitacre-Shustoke Reservoir improvements. The sedimentary phosphorus content on the Lower Shustoke Reservoir |
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| 275 | 1966 - The IBP compound when the team first arrived at Lake George in December 1966. |
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