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351Review of flood defence practices on the Somerset Levels and Moors : the appendices
352Review of flood defence practices on the Somerset Levels and Moors : the report
353Estuarine fish survey 1989 : inferences on the pollution status of the Thames estuary
354The Effect of Atrazine Exposure on the Timing of Salmon (Salmo salar L.) Smolt Emigration
355Further surveys to elucidate the distribution of the fine-lined pea mussel Pisidium tenuilineatum Stelfox, 1918
356The influence of agriculture on the quality of natural waters in England and Wales
357The physical character of rivers and streams in the UK and Isle of Man
358The Distribution of Phytoplankton and Nutrients in the North East Irish Sea During 1998
359The impact of industrial discharges on metal levels in biota of the West Cumbrian coast - 1990
360Environmental monitoring of the Fal Estuary to support the Fal Swan study : final draft report
361The impact of land use on salmonids (Report 30) : a study of the River Torridge catchment
362The behaviour of atrazine and simazine within the chalk aquifer : experimental results and interpretation
363A unified information system to satisfy the NRA's requirement for ecotoxicology information: the specification study
364A Status Report on the Direct Oxygenation of the Tywi Estuary - October 1989
365The application of toxicity-based criteria for the regulatory control of wastewater discharges: a consultation document
366An investigation into the effects of Alton sewage works on the River Wey North
367A brief history of the River Stour navigation : 1705 to the present day
368The Investigation and Specification of Flow Measurement Structure Design Features that Aid the Migration of Fish
369Discharges of waste under the EC titanium dioxide directives : report of the National Rivers Authority
370Protecting your future : tackling flooding in the Thames Estuary through the 21st century
371The land-use planning system and the Water Framework Directive (can't read barcode)
372The Natural (Baseline) Quality Of Groundwaters In England And Wales - The Culm Aquifers, SW England;
373Rural sewage pollution in the '90s : report of the rural sewerage project 1993/4
374Report 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
375A review of the use of multifunction wardens in the Devon Area of the South Western Region of the National Rivers Authority, with particular reference to their use within the fisheries function