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576Waste : strategic waste management survey : landfill within the East Midlands planning region
577Sustainable urban drainage : an introduction : protecting the quality of our environment
578Identification of water quality problems in the Strat and Neet catchments
579Snapshots of the environment : managing our freshwater fisheries
580The effects of fishing at low water levels
5811967 - George and Gideon cutting mbati for the bedroom block.
5821967 - Quakers arriving on the shore of L.George.
583First annual review of the Taw/Torridge estuary catchment management plan (1996)
584Suffolk estuarine strategies : Blyth estuary strategy : introduction to the strategy
585Method for the assessment of river water quality using benthic macroinvertebrates
586Development of Operational and Policy Guidance on the Use of Hydrogen Peroxide
587The National Groundwater and Contaminated Land Centre (NGWCLC)
588The evaluation of a Philips ammonium ion selective electrode (220/14/T)
589The greening of Grasmere: its plankton periodicity in 1988
590A strategic review of the petroleum refinery Industry Sector
591Guidelines for river corridor surveys in the NRA : February 1992. draft 3
592Second annual review of the Sid/Otter catchment management plan 1999
593Contribution of small streams to potential fish production in the Conwy catchment
594NRA strategy for reducing the concentration of pesticides in controlled waters
595Low-cost modifications of the Crump weir to improve fish passage
596'Sea Vigil' water quality monitoring : the Wash 1992-1993
597Second annual review of the Seaton, Looe and Fowey catchment management plan
598The evaluation of a Nico Elit 051 ammonium ion selective electrode (220/16/T)
599The National Rivers Authority employee attitude survey : summary
600The Use of a Hydroacoustic Counter for Assessing Salmon Stocks