| 626 | Water and the environment in times of drought |
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| 627 | Macroinvertebrates of the River Nar : Great Ouse catchment : draft report |
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| 628 | Algae or sewage? : helping you tell the difference |
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| 629 | The Role Of Bankside Habitat In River Ecology |
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| 630 | Economic changes to the value of water environment : draft final report |
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| 631 | NRA superannuation report and accounts for the period ended 31 March 1990 |
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| 632 | Wash zone report. Part 1 : the Wash NRA monitoring review |
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| 633 | Water quality 2000 : a strategy for the water quality function |
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| 634 | Computer files used in the calculation of Rutland and Grafham yields |
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| 635 | The control of effluent discharges by a direct toxicity assessment (DTA) approach |
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| 636 | The Restoration of Floodplain Woodlands in Lowland Britain |
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| 637 | Take to the water : a beginner's guide to boating on inland waterways |
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| 638 | Guidance on the Assessment of Cause and Effect in Ecological Risk Assessment |
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| 639 | Wetlands for Wales : a strategy for the third millenium |
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| 640 | The Impacts of flooding on urban and rural communities |
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| 641 | The relationship between turbidity and suspended solids in final effluents |
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| 642 | General guide to the prevention of pollution of controlled water |
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| 643 | The Environmental Impact of Fish Farming - A Review |
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| 644 | The evaluation of an hydrolab DS3 submersible water quality monitor |
|---|
| 645 | The Removal of Technetium from EARP Waste Streams, Phase II |
|---|
| 646 | Benchmarking rainfall runoff models within the Anglian Region : final report |
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| 647 | The Occurrence of Sheep Dip Pesticides in Environmental Waters June 1997 |
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| 648 | Evaluation of AN analytical sensors ammonium probe for the grant\YSI 3800 |
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| 649 | Reduction in aldrin and dieldrin concentrations in the Newlyn River |
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| 650 | Historic changes in the Upper River Ehen Catchment- Summary |
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