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626Catches of migratory fish in the River Don, Aberdeenshire
627Stream survey and assessment in the Ashford and Folkestone areas
628Lakes, Ponds and Reservoirs in the Southern Region (NRA)
629The 1990 river and estuary classification survey of England and Wales
630The evaluation of an orion ammonium ion selective electrode (220/15/T)
631An Independent Review of the Defra/EA Research and Development Joint
632Anthropogenic Impacts on the Hydrology of Rivers and Lochs
633Dissemination of the Revitalised FEH Rainfall-runoff Method
634General guide to the prevention of water pollution
635Guidance for the Development of Housing on Land Affected by Contamination
636Guidance on the use of Soil Screening Values for Ecological Risk Assessment
637Highway runoff: Effects of soluble pollutants on the ecology of receiving waters
638Life cycle assessment of disposable and reusable nappies in the UK
639Managing the social aspects of flooding: Synthesis Report
640Model For Investigating The Impacts Of Groundwater Abstraction
641National guidelines for the production of NRA regions 1990/91 regional plans
642Operational mechanisms for the protection and enhancement of headwaters
643Policy and practice for the protection of groundwater : regional appendix Welsh region
644Procurement legislation and the NRA : a brief guide
645Strategic review of development and flood risk : the River Welland catchment
646Strategic review of development and flood risk : the River Witham catchment
647Survey of copper speciation in the Great Ouse estuary
648Technical Support Materials for the Regulation of Radioactively Contaminated Land
649The impact of climate change on severe droughts: Implications for decision making
650The Impact of Grazing and Upland Management on Erosion and Runoff