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726The National Groundwater and Contaminated Land Centre (NGWCLC)
727The evaluation of a Philips ammonium ion selective electrode (220/14/T)
728The greening of Grasmere: its plankton periodicity in 1988
729A strategic review of the petroleum refinery Industry Sector
730Guidelines for river corridor surveys in the NRA : February 1992. draft 3
731Second annual review of the Sid/Otter catchment management plan 1999
732Contribution of small streams to potential fish production in the Conwy catchment
733NRA strategy for reducing the concentration of pesticides in controlled waters
734The ecology and management of riverine trees : interim report
735Low-cost modifications of the Crump weir to improve fish passage
736Policy and practice for the protection of groundwater - Thames region appendix
737Policy and practice for the protection of floodplains
738'Sea Vigil' water quality monitoring : the Wash 1992-1993
739Second annual review of the Seaton, Looe and Fowey catchment management plan
740The Yarrow catchment : recommendations for statutory water quality objectives
741Leachate Migration Through The Triassic Sandstones At Burntstump Landfill And Elsewhere
742The evaluation of a Nico Elit 051 ammonium ion selective electrode (220/16/T)
743Guidance on the use of Bioassays in Ecological Risk Assessment
744The National Rivers Authority employee attitude survey : summary
745The Use of a Hydroacoustic Counter for Assessing Salmon Stocks
746Geochemical process modelling : progress report for the period Jan - March 1993 (0295/11/A)
747Pesticides in the aquatic environment 1997 : executive summary
748Targeted Monitoring Programme for Pharmaceuticals in the Aquatic Environment
749Mercury and methylmercury in the river Yare, Norfolk (OI/420/8/A)
750The Louth coastal catchment management plan : final report