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676Snapshots of the environment : managing our freshwater fisheries
6771967 - George and Gideon cutting mbati for the bedroom block.
6781967 - Quakers arriving on the shore of L.George.
679First annual review of the Taw/Torridge estuary catchment management plan (1996)
680Suffolk estuarine strategies : Blyth estuary strategy : introduction to the strategy
681Method for the assessment of river water quality using benthic macroinvertebrates
682Development of Operational and Policy Guidance on the Use of Hydrogen Peroxide
683The National Groundwater and Contaminated Land Centre (NGWCLC)
684The evaluation of a Philips ammonium ion selective electrode (220/14/T)
685The greening of Grasmere: its plankton periodicity in 1988
686A strategic review of the petroleum refinery Industry Sector
687Guidelines for river corridor surveys in the NRA : February 1992. draft 3
688Second annual review of the Sid/Otter catchment management plan 1999
689Contribution of small streams to potential fish production in the Conwy catchment
690NRA strategy for reducing the concentration of pesticides in controlled waters
691The ecology and management of riverine trees : interim report
692Low-cost modifications of the Crump weir to improve fish passage
693Policy and practice for the protection of groundwater - Thames region appendix
694Policy and practice for the protection of floodplains
695'Sea Vigil' water quality monitoring : the Wash 1992-1993
696Second annual review of the Seaton, Looe and Fowey catchment management plan
697Leachate Migration Through The Triassic Sandstones At Burntstump Landfill And Elsewhere
698The evaluation of a Nico Elit 051 ammonium ion selective electrode (220/16/T)
699Guidance on the use of Bioassays in Ecological Risk Assessment
700The National Rivers Authority employee attitude survey : summary