326 | The Trophic Diatom Index: A User's Manual; |
327 | River water quality in the Midlands 1997 |
328 | River water quality in the Midlands 1998 |
329 | Shoreline management plans in the Anglian region |
330 | Duties and powers of the Environment Agency |
331 | Hydropower developments and the National Rivers Authority |
332 | Biological investigation of the Common Lake Stream |
333 | 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 |
334 | The Ecology of Four Scarce Wetland Molluscs |
335 | Recreational waterway byelaws in the Anglian region |
336 | Endocrine Disruption in the Marine Environment |
337 | A brief guide to the medway |
338 | A brief guide to the thames |
339 | Study of the River Stour, Kent |
340 | The source : a guide to NRA services |
341 | We care for the environment : could you? |
342 | What's happening in the North East |
343 | What's happening in the South West |
344 | The River Thame : catchment review : march 1996 |
345 | Phosphate in the cut-off channel |
346 | Determining The Causes Of 'Apparent Eutrophication' Effects |
347 | Public participation and the Water Framework Directive |
348 | Guide to the Medway navigation 1994 |
349 | Agriculture and the Water Framework Directive |
350 | 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 |