| 676 | The River Tywi catchment management plan : action plan (bilingual) |
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| 677 | Reappraisal of the River Lee to Wheathampstead Mill |
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| 678 | Business requirement specification : integrated accounting system for the (IAS) |
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| 679 | A report on fish production in the National Rivers Authority |
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| 680 | Moston Brook Summary Report for the Evidence and Measures Project |
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| 681 | Corporate Environmental Reporting in the UK Water Sector - A Concise Review |
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| 682 | Strategy for the use of field instrumentation in water quality monitoring |
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| 683 | User notes for the Deben groundwater modelling package |
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| 684 | Anthropogenic Influences on the temperature regime in a chalk river |
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| 685 | London's river (information pack on the River Thames) |
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| 686 | Water and the environment in times of drought |
|---|
| 687 | Macroinvertebrates of the River Nar : Great Ouse catchment : draft report |
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| 688 | Water and the environment in times of drought |
|---|
| 689 | Algae or sewage? : helping you tell the difference |
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| 690 | The Role Of Bankside Habitat In River Ecology |
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| 691 | Economic changes to the value of water environment : draft final report |
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| 692 | NRA superannuation report and accounts for the period ended 31 March 1990 |
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| 693 | Wash zone report. Part 1 : the Wash NRA monitoring review |
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| 694 | Broadland flood alleviation strategy : the programme for flood defence works |
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| 695 | The Cam catchment, Anglian region : proposals for statutory water quality objectives |
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| 696 | Computer files used in the calculation of Rutland and Grafham yields |
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| 697 | The control of effluent discharges by a direct toxicity assessment (DTA) approach |
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| 698 | The Restoration of Floodplain Woodlands in Lowland Britain |
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| 699 | Take to the water : a beginner's guide to boating on inland waterways |
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| 700 | Report on the quality of bathing waters 1990 |
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