| 476 | Reappraisal of the River Lee to Wheathampstead Mill |
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| 477 | Business requirement specification : integrated accounting system for the (IAS) |
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| 478 | A report on fish production in the National Rivers Authority |
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| 479 | Moston Brook Summary Report for the Evidence and Measures Project |
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| 480 | User notes for the Deben groundwater modelling package |
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| 481 | London's river (information pack on the River Thames) |
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| 482 | Water and the environment in times of drought |
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| 483 | A strategy for the management of salmon in England and Wales |
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| 484 | Algae or sewage? : helping you tell the difference |
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| 485 | The Role Of Bankside Habitat In River Ecology |
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| 486 | Economic changes to the value of water environment : draft final report |
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| 487 | NRA superannuation report and accounts for the period ended 31 March 1990 |
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| 488 | Take to the water : a beginner's guide to boating on inland waterways |
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| 489 | Guidance on the Assessment of Cause and Effect in Ecological Risk Assessment |
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| 490 | Wetlands for Wales : a strategy for the third millenium |
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| 491 | The Impacts of flooding on urban and rural communities |
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| 492 | The River Thame : catchment review : first draft - 16th Februrary 1996 |
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| 493 | The relationship between turbidity and suspended solids in final effluents |
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| 494 | The Environmental Impact of Fish Farming - A Review |
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| 495 | The Removal of Technetium from EARP Waste Streams, Phase II |
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| 496 | Benchmarking rainfall runoff models within the Anglian Region : final report |
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| 497 | Evaluation of AN analytical sensors ammonium probe for the grant\YSI 3800 |
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| 498 | Steady-state particle tracking in the object-orientated regional groundwater model ZOOMQ3D |
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| 499 | Roger Sweeting providing a commentary on The Tern |
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| 500 | Policy and practice for the protection of groundwater |
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