401 | Conservation and recreation: the Wye challenge: volume 1: report of the River Wye project |
402 | SERPLAN development scenarios : the potential impact upon water resources in the SERPLAN region |
403 | Towards the sustainable use of material resources : an evaluation using the natural step framework |
404 | Water resources for the future : a summary of the strategy for Wales (bilingual) |
405 | Water resources for the future : a summary of the strategy for North West Region |
406 | Water resources for the future : a summary of the strategy for South West region |
407 | Classification of listed substances for the purposes of the EC groundwater directive (80/68/EEC) : technical report |
408 | Running with the tide : reconciling development pressures with flood risk and the environment |
409 | Water for the future in Kent : NRA response to the issues and options report |
410 | Review of flood defence practices on the Somerset Levels and Moors : the appendices |
411 | Review of flood defence practices on the Somerset Levels and Moors : the report |
412 | Estuarine fish survey 1989 : inferences on the pollution status of the Thames estuary |
413 | Investigation of the water quality in the Buckland stream up and downstream of East/West Buckland |
414 | The Effect of Atrazine Exposure on the Timing of Salmon (Salmo salar L.) Smolt Emigration |
415 | Planning for the rising tides : the Humber estuary shoreline management plan. Summary of proposals |
416 | The influence of agriculture on the quality of natural waters in England and Wales |
417 | The Distribution of Phytoplankton and Nutrients in the North East Irish Sea During 1998 |
418 | Biological assessment of the effects of Ivybridge Sewage Treatment Works on the River Erme |
419 | The impact of industrial discharges on metal levels in biota of the West Cumbrian coast - 1990 |
420 | Environmental monitoring of the Fal Estuary to support the Fal Swan study : final draft report |
421 | The impact of land use on salmonids (Report 30) : a study of the River Torridge catchment |
422 | The behaviour of atrazine and simazine within the chalk aquifer : experimental results and interpretation |
423 | A unified information system to satisfy the NRA's requirement for ecotoxicology information: the specification study |
424 | A Status Report on the Direct Oxygenation of the Tywi Estuary - October 1989 |
425 | A collation of the environmental impact work carried out following the Rosebay oil spill, May 1990 |