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501The effects of fishing at low water levels
5021967 - George and Gideon cutting mbati for the bedroom block.
5031967 - Quakers arriving on the shore of L.George.
504First annual review of the Taw/Torridge estuary catchment management plan (1996)
505Suffolk estuarine strategies : Blyth estuary strategy : introduction to the strategy
506Method for the assessment of river water quality using benthic macroinvertebrates
507Development of Operational and Policy Guidance on the Use of Hydrogen Peroxide
508The National Groundwater and Contaminated Land Centre (NGWCLC)
509The evaluation of a Philips ammonium ion selective electrode (220/14/T)
510The greening of Grasmere: its plankton periodicity in 1988
511A strategic review of the petroleum refinery Industry Sector
512Guidelines for river corridor surveys in the NRA : February 1992. draft 3
513NRA strategy for reducing the concentration of pesticides in controlled waters
514Low-cost modifications of the Crump weir to improve fish passage
515Policy and practice for the protection of floodplains
516'Sea Vigil' water quality monitoring : the Wash 1992-1993
517Leachate Migration Through The Triassic Sandstones At Burntstump Landfill And Elsewhere
518The evaluation of a Nico Elit 051 ammonium ion selective electrode (220/16/T)
519Guidance on the use of Bioassays in Ecological Risk Assessment
520The National Rivers Authority employee attitude survey : summary
521The Use of a Hydroacoustic Counter for Assessing Salmon Stocks
522Geochemical process modelling : progress report for the period Jan - March 1993 (0295/11/A)
523Pesticides in the aquatic environment 1997 : executive summary
524Targeted Monitoring Programme for Pharmaceuticals in the Aquatic Environment
525Draft protocol for the derivation of Toxicity Based Consents