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601The effects of fishing at low water levels
6021967 - George and Gideon cutting mbati for the bedroom block.
6031967 - Quakers arriving on the shore of L.George.
604First annual review of the Taw/Torridge estuary catchment management plan (1996)
605Suffolk estuarine strategies : Blyth estuary strategy : introduction to the strategy
606Method for the assessment of river water quality using benthic macroinvertebrates
607The evaluation of a Philips ammonium ion selective electrode (220/14/T)
608The greening of Grasmere: its plankton periodicity in 1988
609A strategic review of the petroleum refinery Industry Sector
610Guidelines for river corridor surveys in the NRA : February 1992. draft 3
611Second annual review of the Sid/Otter catchment management plan 1999
612Contribution of small streams to potential fish production in the Conwy catchment
613The ecology and management of riverine trees : interim report
614Low-cost modifications of the Crump weir to improve fish passage
615Policy and practice for the protection of groundwater - Thames region appendix
616Policy and practice for the protection of floodplains
617'Sea Vigil' water quality monitoring : the Wash 1992-1993
618Second annual review of the Seaton, Looe and Fowey catchment management plan
619The Yarrow catchment : recommendations for statutory water quality objectives
620Leachate Migration Through The Triassic Sandstones At Burntstump Landfill And Elsewhere
621The evaluation of a Nico Elit 051 ammonium ion selective electrode (220/16/T)
622Guidance on the use of Bioassays in Ecological Risk Assessment
623The National Rivers Authority employee attitude survey : summary
624The Use of a Hydroacoustic Counter for Assessing Salmon Stocks
625Pesticides in the aquatic environment 1997 : executive summary