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4676North Cornwall coastal streams : catchment action plan
4677Distribution and habitat occurrence of water shrews in Great Britain
4678Quarterly Review : April - December 1991 NRA Southern Region
4679Quarterly Review : April - June 1991 NRA Southern Region
4680Quarterly review : Southern region 1992/93 Apr - Dec 1992
4681River Clwyd catchment management plan : action plan (bilingual) : Cynllun Rheoli Dalgylch Afon Clwyd Cynllun Gweithredu
4682River Dee catchment management plan : action plan (bilingual) : 1996: Cynllun Gweithrediad Cynllun Rheoli Dalgylch Dyfrdwy 1996
4683River Mole : action plan : December 1996
4684River Severn lower reaches catchment management plan : action plan : November 1995
4685River Taff catchment management plan : action plan (bilingual) : 1996
4686Kennet and Coln river levels study. Volume two - River Coln : final report
4687Recreation and amenity surveys of identified low flow rivers. Part 1 : survey report
4688Dinobryon,
4689Factors Affecting Coarse Fish Recruitment: Phase II - Examination and Analysis of Existing Environment Agency Data
4690Hydrometric report and catalogue 1990 : National Rivers Authority, Severn-Trent Region
4691Biosensors for environmental monitoring : a review of capabilities and strategies for the future : consultant's report to the NRA
4692Coastal baseline survey 1990-93. Part 1 : nutrients
4693Environmental Quality Standards for Dissolved Oxygen
4694The evaluation of a pHOX model 962 hand-held dissolved oxygen meter (220/28/T)
4695The evaluation of a WTW model OXI 196 hand-held dissolved oxygen meter (220/29/T)
4696The evaluation of a YSI model 58 hand-held dissolved oxygen meter (220/24/T)
4697The evaluation of an ABB Kent-Taylor model 7135 hand-held dissolved oxygen meter (220/30/T)
4698Determining The Causes Of 'Apparent Eutrophication' Effects
4699River nar eutrophication study aquatic macrophyte survey
4700Pilot environmental audit : NRA Leigh, Tonbridge, district office : southern region