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3626NRA research and development programme - 1995/96 : schedule of on-going projects and proposed new starts
3627Annual N2O measurements and associated data: AC0213, Northumberland, 2012
3628National Rivers Authority/Po River Basin Authority collaboration programme : (collection of documents)
3629The Ribble fisheries management plan : a consultation document produced by the National Rivers Authority
3630Sources of farm pollution and impact on river quality : interim report (001/6/W)
3631Diagnostic Drawing: Cocolith types,
3632Water resources development options : final report. Volume 2 : technical appendices
3633Herbarium Image: Achillea ptarmica
3634New style charging schemes for discharges and abstractions (Note 16)
3635Proposed scheme of abstraction charges 1993-94
3636Flood risk management in North Wessex area : be prepared for flooding
3637The National Rivers Authority employee attitude survey : summary
3638The Use of a Hydroacoustic Counter for Assessing Salmon Stocks
3639Factors affecting natural smolt production
3640The disposal of sheep dip waste (R and D Report 11) : effects on water quality
3641Dugesia tigrina,
3642Herbarium Image: Potamogeton berchtoldii
3643Diagnostic Drawing: Chaetophora and related genera,
3644Geochemical process modelling : progress report for the period Jan - March 1993 (0295/11/A)
3645Restoration of riverine fisheries habitats - progress report for period October 1991 - March 1992
3646Pesticides in the aquatic environment 1997 : executive summary
3647Diagnostic Drawing: Codiaceae,
3648Fertiliser application dates: AC0213, Northumberland, 2012
3649River quality classification 1985-1990 : reasons for non-compliance
3650Investigation of the impact on water quality of the SWW Teign estuary sewerage trenching activity