676 | NRA superannuation report and accounts for the period ended 31 March 1990 |
677 | Wash zone report. Part 1 : the Wash NRA monitoring review |
678 | Broadland flood alleviation strategy : the programme for flood defence works |
679 | Water quality 2000 : a strategy for the water quality function |
680 | The Cam catchment, Anglian region : proposals for statutory water quality objectives |
681 | Computer files used in the calculation of Rutland and Grafham yields |
682 | The control of effluent discharges by a direct toxicity assessment (DTA) approach |
683 | The Restoration of Floodplain Woodlands in Lowland Britain |
684 | Take to the water : a beginner's guide to boating on inland waterways |
685 | Guidance on the Assessment of Cause and Effect in Ecological Risk Assessment |
686 | Wetlands for Wales : a strategy for the third millenium |
687 | The Warwickshire Avon catchment management plan : consultation report : March 1994 |
688 | The River Thame : catchment review : first draft - 16th Februrary 1996 |
689 | The relationship between turbidity and suspended solids in final effluents |
690 | General guide to the prevention of pollution of controlled water |
691 | The Environmental Impact of Fish Farming - A Review |
692 | The evaluation of an hydrolab DS3 submersible water quality monitor |
693 | The Removal of Technetium from EARP Waste Streams, Phase II |
694 | The Occurrence of Sheep Dip Pesticides in Environmental Waters June 1997 |
695 | Evaluation of AN analytical sensors ammonium probe for the grant\YSI 3800 |
696 | Reduction in aldrin and dieldrin concentrations in the Newlyn River |
697 | Historic changes in the Upper River Ehen Catchment- Summary |
698 | Metallothionein in eels from the Thames Estuary : an indicator of environmental quality |
699 | Steady-state particle tracking in the object-orientated regional groundwater model ZOOMQ3D |
700 | The Dove catchment management plan : consultation report summary : January 1995 |