| 326 | Review of flood defence practices on the Somerset Levels and Moors : the appendices |
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| 327 | Review of flood defence practices on the Somerset Levels and Moors : the report |
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| 328 | Estuarine fish survey 1989 : inferences on the pollution status of the Thames estuary |
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| 329 | Investigation of the water quality in the Buckland stream up and downstream of East/West Buckland |
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| 330 | The Effect of Atrazine Exposure on the Timing of Salmon (Salmo salar L.) Smolt Emigration |
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| 331 | Further surveys to elucidate the distribution of the fine-lined pea mussel Pisidium tenuilineatum Stelfox, 1918 |
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| 332 | The physical character of rivers and streams in the UK and Isle of Man |
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| 333 | The impact of industrial discharges on metal levels in biota of the West Cumbrian coast - 1990 |
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| 334 | Environmental monitoring of the Fal Estuary to support the Fal Swan study : final draft report |
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| 335 | The impact of land use on salmonids (Report 30) : a study of the River Torridge catchment |
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| 336 | The behaviour of atrazine and simazine within the chalk aquifer : experimental results and interpretation |
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| 337 | A unified information system to satisfy the NRA's requirement for ecotoxicology information: the specification study |
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| 338 | A Status Report on the Direct Oxygenation of the Tywi Estuary - October 1989 |
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| 339 | A collation of the environmental impact work carried out following the Rosebay oil spill, May 1990 |
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| 340 | The application of toxicity-based criteria for the regulatory control of wastewater discharges: a consultation document |
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| 341 | A brief history of the River Stour navigation : 1705 to the present day |
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| 342 | The Investigation and Specification of Flow Measurement Structure Design Features that Aid the Migration of Fish |
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| 343 | Discharges of waste under the EC titanium dioxide directives : report of the National Rivers Authority |
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| 344 | Protecting your future : tackling flooding in the Thames Estuary through the 21st century |
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| 345 | The land-use planning system and the Water Framework Directive (can't read barcode) |
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| 346 | The Natural (Baseline) Quality Of Groundwaters In England And Wales - The Culm Aquifers, SW England; |
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| 347 | Report for Anglian Water, NRA Unit on the uses of the Orwell and the Stour Estuaries and the use of the mathematical model to derive long term consent limits for all inputs to Orwell Estuary |
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| 348 | Report on the national marine analytical quality control scheme 1993/94 : presented to the 18th October 1994 meeting of the Marine Pollution Monitoring Management Group |
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| 349 | Identification of Blue Green Algae of the British Isles Guide to the Genera and Use of the Interactive CD-ROM for Identification of Species |
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| 350 | Implementation of the EC freshwater fish directive : water quality requirements for the support of fish life : report of the National Rivers Authority |
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