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726First annual review of the Taw/Torridge estuary catchment management plan (1996)
727Suffolk estuarine strategies : Blyth estuary strategy : introduction to the strategy
728Method for the assessment of river water quality using benthic macroinvertebrates
729Development of Operational and Policy Guidance on the Use of Hydrogen Peroxide
730The National Groundwater and Contaminated Land Centre (NGWCLC)
731The evaluation of a Philips ammonium ion selective electrode (220/14/T)
732The greening of Grasmere: its plankton periodicity in 1988
733A strategic review of the petroleum refinery Industry Sector
734Guidelines for river corridor surveys in the NRA : February 1992. draft 3
735Second annual review of the Sid/Otter catchment management plan 1999
736Contribution of small streams to potential fish production in the Conwy catchment
737NRA strategy for reducing the concentration of pesticides in controlled waters
738The ecology and management of riverine trees : interim report
739Low-cost modifications of the Crump weir to improve fish passage
740Policy and practice for the protection of groundwater - Thames region appendix
741Policy and practice for the protection of floodplains
742Second annual review of the Seaton, Looe and Fowey catchment management plan
743The Yarrow catchment : recommendations for statutory water quality objectives
744Leachate Migration Through The Triassic Sandstones At Burntstump Landfill And Elsewhere
745The evaluation of a Nico Elit 051 ammonium ion selective electrode (220/16/T)
746Guidance on the use of Bioassays in Ecological Risk Assessment
747The National Rivers Authority employee attitude survey : summary
748The Use of a Hydroacoustic Counter for Assessing Salmon Stocks
749Geochemical process modelling : progress report for the period Jan - March 1993 (0295/11/A)
750Pesticides in the aquatic environment 1997 : executive summary