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#Title
651Suffolk estuarine strategies : Blyth estuary strategy : introduction to the strategy
652Method for the assessment of river water quality using benthic macroinvertebrates
653Development of Operational and Policy Guidance on the Use of Hydrogen Peroxide
654The National Groundwater and Contaminated Land Centre (NGWCLC)
655The evaluation of a Philips ammonium ion selective electrode (220/14/T)
656The greening of Grasmere: its plankton periodicity in 1988
657A strategic review of the petroleum refinery Industry Sector
658Guidelines for river corridor surveys in the NRA : February 1992. draft 3
659Contribution of small streams to potential fish production in the Conwy catchment
660NRA strategy for reducing the concentration of pesticides in controlled waters
661The ecology and management of riverine trees : interim report
662Low-cost modifications of the Crump weir to improve fish passage
663Policy and practice for the protection of groundwater - Thames region appendix
664Policy and practice for the protection of floodplains
665'Sea Vigil' water quality monitoring : the Wash 1992-1993
666Second annual review of the Seaton, Looe and Fowey catchment management plan
667The Yarrow catchment : recommendations for statutory water quality objectives
668Leachate Migration Through The Triassic Sandstones At Burntstump Landfill And Elsewhere
669The evaluation of a Nico Elit 051 ammonium ion selective electrode (220/16/T)
670Guidance on the use of Bioassays in Ecological Risk Assessment
671The National Rivers Authority employee attitude survey : summary
672The Use of a Hydroacoustic Counter for Assessing Salmon Stocks
673Geochemical process modelling : progress report for the period Jan - March 1993 (0295/11/A)
674Pesticides in the aquatic environment 1997 : executive summary
675Targeted Monitoring Programme for Pharmaceuticals in the Aquatic Environment