| 476 | Snapshots of the environment : understanding coastal water quality |
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| 477 | The evaluation of EDT QSE 334 ammonium ion selective electrode (220/17/T) |
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| 478 | The evaluation of ingold ion selective ammonium electrode (220/23/T) |
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| 479 | The Influence of Variations in Flow on General Quality Assessment of Rivers |
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| 480 | Stratification in the Severn Estuary- Physical aspects and biological consequences |
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| 481 | 'Sea Vigil' water quality monitoring : the East coast 1992-1993 |
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| 482 | Catches of migratory fish in the River Don, Aberdeenshire |
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| 483 | Lakes, Ponds and Reservoirs in the Southern Region (NRA) |
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| 484 | The 1990 river and estuary classification survey of England and Wales |
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| 485 | The evaluation of an orion ammonium ion selective electrode (220/15/T) |
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| 486 | An Independent Review of the Defra/EA Research and Development Joint |
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| 487 | Anthropogenic Impacts on the Hydrology of Rivers and Lochs |
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| 488 | Dissemination of the Revitalised FEH Rainfall-runoff Method |
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| 489 | General guide to the prevention of water pollution |
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| 490 | Highway runoff: Effects of soluble pollutants on the ecology of receiving waters |
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| 491 | Life cycle assessment of disposable and reusable nappies in the UK |
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| 492 | Managing the social aspects of flooding: Synthesis Report |
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| 493 | Model For Investigating The Impacts Of Groundwater Abstraction |
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| 494 | National guidelines for the production of NRA regions 1990/91 regional plans |
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| 495 | Operational mechanisms for the protection and enhancement of headwaters |
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| 496 | Policy and practice for the protection of groundwater : regional appendix Welsh region |
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| 497 | Procurement legislation and the NRA : a brief guide |
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| 498 | Survey of copper speciation in the Great Ouse estuary |
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| 499 | Sustainable development indicators : monitoring change in the East Midlands |
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| 500 | Technical Support Materials for the Regulation of Radioactively Contaminated Land |
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