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#Title
651First annual review of the Taw/Torridge estuary catchment management plan (1996)
652Suffolk estuarine strategies : Blyth estuary strategy : introduction to the strategy
653Method for the assessment of river water quality using benthic macroinvertebrates
654The National Groundwater and Contaminated Land Centre (NGWCLC)
655The evaluation of a Philips ammonium ion selective electrode (220/14/T)
656The greening of Grasmere: its plankton periodicity in 1988
657A strategic review of the petroleum refinery Industry Sector
658Guidelines for river corridor surveys in the NRA : February 1992. draft 3
659Second annual review of the Sid/Otter catchment management plan 1999
660Contribution of small streams to potential fish production in the Conwy catchment
661NRA strategy for reducing the concentration of pesticides in controlled waters
662The ecology and management of riverine trees : interim report
663Low-cost modifications of the Crump weir to improve fish passage
664Policy and practice for the protection of groundwater - Thames region appendix
665Policy and practice for the protection of floodplains
666'Sea Vigil' water quality monitoring : the Wash 1992-1993
667Second annual review of the Seaton, Looe and Fowey catchment management plan
668The Yarrow catchment : recommendations for statutory water quality objectives
669Leachate Migration Through The Triassic Sandstones At Burntstump Landfill And Elsewhere
670The evaluation of a Nico Elit 051 ammonium ion selective electrode (220/16/T)
671The National Rivers Authority employee attitude survey : summary
672The Use of a Hydroacoustic Counter for Assessing Salmon Stocks
673Geochemical process modelling : progress report for the period Jan - March 1993 (0295/11/A)
674Pesticides in the aquatic environment 1997 : executive summary
675Mercury and methylmercury in the river Yare, Norfolk (OI/420/8/A)