| 301 | The Trophic Diatom Index: A User's Manual; |
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| 302 | River water quality in the Midlands 1997 |
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| 303 | River water quality in the Midlands 1998 |
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| 304 | Hydropower developments and the National Rivers Authority |
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| 305 | Biological investigation of the Common Lake Stream |
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| 306 | 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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| 307 | The Ecology of Four Scarce Wetland Molluscs |
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| 308 | Recreational waterway byelaws in the Anglian region |
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| 309 | Endocrine Disruption in the Marine Environment |
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| 310 | A brief guide to the medway |
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| 311 | A brief guide to the thames |
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| 312 | Study of the River Stour, Kent |
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| 313 | We care for the environment : could you? |
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| 314 | What's happening in the North East |
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| 315 | What's happening in the South West |
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| 316 | The River Thame : catchment review : march 1996 |
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| 317 | Phosphate in the cut-off channel |
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| 318 | Determining The Causes Of 'Apparent Eutrophication' Effects |
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| 319 | Public participation and the Water Framework Directive |
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| 320 | Guide to the Medway navigation 1994 |
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| 321 | Agriculture and the Water Framework Directive |
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| 322 | 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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| 323 | A Demonstration Of The Feasibility Of Soilpacs |
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| 324 | Diffuse pollution and the water framework directive |
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| 325 | The Great Ouse (Bedford Ouse) fact file |
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