626 | Applications Of Artificial Intelligence For The Biological Surveillance Of River Quality |
627 | Improving the contribution of social science to Flood Risk Management |
628 | The River Tywi catchment management plan : action plan (bilingual) |
629 | Reappraisal of the River Lee to Wheathampstead Mill |
630 | Business requirement specification : integrated accounting system for the (IAS) |
631 | A report on fish production in the National Rivers Authority |
632 | Moston Brook Summary Report for the Evidence and Measures Project |
633 | Corporate Environmental Reporting in the UK Water Sector - A Concise Review |
634 | Environmental planning issues in the North Wessex area |
635 | Strategy for the use of field instrumentation in water quality monitoring |
636 | Anthropogenic Influences on the temperature regime in a chalk river |
637 | London's river (information pack on the River Thames) |
638 | Water and the environment in times of drought |
639 | Macroinvertebrates of the River Nar : Great Ouse catchment : draft report |
640 | Water and the environment in times of drought |
641 | A strategy for the management of salmon in England and Wales |
642 | Algae or sewage? : helping you tell the difference |
643 | The Role Of Bankside Habitat In River Ecology |
644 | Economic changes to the value of water environment : draft final report |
645 | NRA superannuation report and accounts for the period ended 31 March 1990 |
646 | Wash zone report. Part 1 : the Wash NRA monitoring review |
647 | Water quality 2000 : a strategy for the water quality function |
648 | The Cam catchment, Anglian region : proposals for statutory water quality objectives |
649 | Computer files used in the calculation of Rutland and Grafham yields |
650 | The control of effluent discharges by a direct toxicity assessment (DTA) approach |