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#Title
6261967 - Quakers arriving on the shore of L.George.
627First annual review of the Taw/Torridge estuary catchment management plan (1996)
628Suffolk estuarine strategies : Blyth estuary strategy : introduction to the strategy
629Method for the assessment of river water quality using benthic macroinvertebrates
630Development of Operational and Policy Guidance on the Use of Hydrogen Peroxide
631The National Groundwater and Contaminated Land Centre (NGWCLC)
632The evaluation of a Philips ammonium ion selective electrode (220/14/T)
633The greening of Grasmere: its plankton periodicity in 1988
634A strategic review of the petroleum refinery Industry Sector
635Guidelines for river corridor surveys in the NRA : February 1992. draft 3
636Contribution of small streams to potential fish production in the Conwy catchment
637NRA strategy for reducing the concentration of pesticides in controlled waters
638The ecology and management of riverine trees : interim report
639Low-cost modifications of the Crump weir to improve fish passage
640Policy and practice for the protection of groundwater - Thames region appendix
641Policy and practice for the protection of floodplains
642'Sea Vigil' water quality monitoring : the Wash 1992-1993
643Leachate Migration Through The Triassic Sandstones At Burntstump Landfill And Elsewhere
644The evaluation of a Nico Elit 051 ammonium ion selective electrode (220/16/T)
645Guidance on the use of Bioassays in Ecological Risk Assessment
646The National Rivers Authority employee attitude survey : summary
647The Use of a Hydroacoustic Counter for Assessing Salmon Stocks
648Geochemical process modelling : progress report for the period Jan - March 1993 (0295/11/A)
649Pesticides in the aquatic environment 1997 : executive summary
650Targeted Monitoring Programme for Pharmaceuticals in the Aquatic Environment