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626Snapshots of the environment : managing our freshwater fisheries
627The effects of fishing at low water levels
6281967 - George and Gideon cutting mbati for the bedroom block.
6291967 - Quakers arriving on the shore of L.George.
630First annual review of the Taw/Torridge estuary catchment management plan (1996)
631Suffolk estuarine strategies : Blyth estuary strategy : introduction to the strategy
632The National Groundwater and Contaminated Land Centre (NGWCLC)
633The evaluation of a Philips ammonium ion selective electrode (220/14/T)
634The greening of Grasmere: its plankton periodicity in 1988
635A strategic review of the petroleum refinery Industry Sector
636Guidelines for river corridor surveys in the NRA : February 1992. draft 3
637Contribution of small streams to potential fish production in the Conwy catchment
638NRA strategy for reducing the concentration of pesticides in controlled waters
639The ecology and management of riverine trees : interim report
640Low-cost modifications of the Crump weir to improve fish passage
641Policy and practice for the protection of groundwater - Thames region appendix
642Policy and practice for the protection of floodplains
643'Sea Vigil' water quality monitoring : the Wash 1992-1993
644The Yarrow catchment : recommendations for statutory water quality objectives
645Leachate Migration Through The Triassic Sandstones At Burntstump Landfill And Elsewhere
646The evaluation of a Nico Elit 051 ammonium ion selective electrode (220/16/T)
647The National Rivers Authority employee attitude survey : summary
648The Use of a Hydroacoustic Counter for Assessing Salmon Stocks
649Geochemical process modelling : progress report for the period Jan - March 1993 (0295/11/A)
650Pesticides in the aquatic environment 1997 : executive summary