| 476 | Groundwater-surface Water Interactions in the Hyporheic Zone |
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| 477 | River water quality in the Midlands 1994/95 : water quality summary data |
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| 478 | Model Procedures for the Management of Land Contamination |
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| 479 | Applications Of Artificial Intelligence For The Biological Surveillance Of River Quality |
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| 480 | Reappraisal of the River Lee to Wheathampstead Mill |
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| 481 | Business requirement specification : integrated accounting system for the (IAS) |
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| 482 | Moston Brook Summary Report for the Evidence and Measures Project |
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| 483 | Strategy for the use of field instrumentation in water quality monitoring |
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| 484 | Anthropogenic Influences on the temperature regime in a chalk river |
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| 485 | London's river (information pack on the River Thames) |
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| 486 | Water and the environment in times of drought |
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| 487 | Water and the environment in times of drought |
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| 488 | Algae or sewage? : helping you tell the difference |
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| 489 | The Role Of Bankside Habitat In River Ecology |
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| 490 | Economic changes to the value of water environment : draft final report |
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| 491 | NRA superannuation report and accounts for the period ended 31 March 1990 |
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| 492 | Wash zone report. Part 1 : the Wash NRA monitoring review |
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| 493 | Water quality 2000 : a strategy for the water quality function |
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| 494 | Computer files used in the calculation of Rutland and Grafham yields |
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| 495 | The control of effluent discharges by a direct toxicity assessment (DTA) approach |
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| 496 | The Restoration of Floodplain Woodlands in Lowland Britain |
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| 497 | Take to the water : a beginner's guide to boating on inland waterways |
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| 498 | Report on the quality of bathing waters 1990 |
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| 499 | Guidance on the Assessment of Cause and Effect in Ecological Risk Assessment |
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| 500 | Wetlands for Wales : a strategy for the third millenium |
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