601 | Water and the environment in times of drought |
602 | Macroinvertebrates of the River Nar : Great Ouse catchment : draft report |
603 | Water and the environment in times of drought |
604 | Algae or sewage? : helping you tell the difference |
605 | The Role Of Bankside Habitat In River Ecology |
606 | Economic changes to the value of water environment : draft final report |
607 | NRA superannuation report and accounts for the period ended 31 March 1990 |
608 | Wash zone report. Part 1 : the Wash NRA monitoring review |
609 | Water quality 2000 : a strategy for the water quality function |
610 | Computer files used in the calculation of Rutland and Grafham yields |
611 | The control of effluent discharges by a direct toxicity assessment (DTA) approach |
612 | The Restoration of Floodplain Woodlands in Lowland Britain |
613 | Take to the water : a beginner's guide to boating on inland waterways |
614 | Report on the quality of bathing waters 1990 |
615 | Guidance on the Assessment of Cause and Effect in Ecological Risk Assessment |
616 | Wetlands for Wales : a strategy for the third millenium |
617 | The Impacts of flooding on urban and rural communities |
618 | The relationship between turbidity and suspended solids in final effluents |
619 | The Environmental Impact of Fish Farming - A Review |
620 | The evaluation of an hydrolab DS3 submersible water quality monitor |
621 | The Removal of Technetium from EARP Waste Streams, Phase II |
622 | Benchmarking rainfall runoff models within the Anglian Region : final report |
623 | Evaluation of AN analytical sensors ammonium probe for the grant\YSI 3800 |
624 | Reduction in aldrin and dieldrin concentrations in the Newlyn River |
625 | Historic changes in the Upper River Ehen Catchment- Summary |