| 476 | Enhancing the environment : 25 case studies from Thames Region |
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| 477 | Fish Guide 1997/98 A Guide to day ticket fisheries in the Midlands |
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| 478 | Flood warning information for the river Witham and tributaries in Lincolnshire |
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| 479 | Conservation and development of the River Eden spring salmon population |
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| 480 | Flood warning information for North Surrey : The Bournes catchment |
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| 481 | Habitat preferences of the bullhead (Cottus gobio) in some Norfolk rivers |
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| 482 | Improving the environment in Midlands region : Midlands local contribution 2006/11 |
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| 483 | England's river : a guide to the Thames from Remenham to Cookham |
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| 484 | Regulation of dioxin releases from the Runcorn operations of ICI and EVC |
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| 485 | Guidance on the application of environmental risk assessment for waste management licensing |
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| 486 | Partnership in environmental protection : schemes in the Midlands Region 1995 - 1996 |
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| 487 | An investigation into the incidence of spurting from weeping wall slurry stores |
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| 488 | NRA superannuation report and accounts for the period ended 31 March 1991 |
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| 489 | Further guidance on the environmental assessment of projects |
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| 490 | Assessing the impact of dewatering on water resources |
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| 491 | The use and design of oil separators in surface water drainage systems |
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| 492 | The utilisation of stick-pile otter holts in south east Wales |
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| 493 | Improving the Environment Agency's contribution to wetland bird populations |
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| 494 | Model Procedures for the Management of Land Contamination |
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| 495 | Improving the contribution of social science to Flood Risk Management |
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| 496 | The River Tywi catchment management plan : action plan (bilingual) |
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| 497 | Reappraisal of the River Lee to Wheathampstead Mill |
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| 498 | Business requirement specification : integrated accounting system for the (IAS) |
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| 499 | A report on fish production in the National Rivers Authority |
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| 500 | Moston Brook Summary Report for the Evidence and Measures Project |
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