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626The evaluation of EDT QSE 334 ammonium ion selective electrode (220/17/T)
627The evaluation of ingold ion selective ammonium electrode (220/23/T)
628Rivers of the Isle of Wight fact file
629Stratification in the Severn Estuary- Physical aspects and biological consequences
630The Mersey estuary : a report on environmental quality
631'Sea Vigil' water quality monitoring : the East coast 1992-1993
632Lakes, Ponds and Reservoirs in the Southern Region (NRA)
633The 1990 river and estuary classification survey of England and Wales
634The evaluation of an orion ammonium ion selective electrode (220/15/T)
635An Independent Review of the Defra/EA Research and Development Joint
636Anthropogenic Impacts on the Hydrology of Rivers and Lochs
637Dissemination of the Revitalised FEH Rainfall-runoff Method
638General guide to the prevention of water pollution
639Guidance for the Development of Housing on Land Affected by Contamination
640Guidance on the use of Soil Screening Values for Ecological Risk Assessment
641Highway runoff: Effects of soluble pollutants on the ecology of receiving waters
642Life cycle assessment of disposable and reusable nappies in the UK
643Managing the social aspects of flooding: Synthesis Report
644Model For Investigating The Impacts Of Groundwater Abstraction
645National guidelines for the production of NRA regions 1990/91 regional plans
646Operational mechanisms for the protection and enhancement of headwaters
647Policy and practice for the protection of groundwater : regional appendix Welsh region
648Procurement legislation and the NRA : a brief guide
649Strategic review of development and flood risk : the River Welland catchment
650Strategic review of development and flood risk : the River Witham catchment