5251 | Fisheries statistics 1996 : salmonid and freshwater fisheries statistics for England and Wales |
5252 | Managing water resources NRA |
5253 | Mean Trophic Rank: A User's Manual |
5254 | National Rivers Authority annual report and accounts 1990/91 |
5255 | River Severn upper reaches catchment management plan : first annual review : July 1995 - June 1996 |
5256 | Technical Summary - Quantifying Point Source Inputs of Pesticides to River Catchments |
5257 | 1996 Hit Lists, Final Draft Annex 1A High Load Hit List |
5258 | Rhyzophydium |
5259 | North West recreation, biology and conservation annual report 2000-2001 |
5260 | River Welland navigation |
5261 | The effects of ammonia in discharges from Hogsmill Valley sewage treatment works on the water quality of the River Thames at Teddington |
5262 | The Identification of Oestrogenic Effects in Wild Fish |
5263 | Environmental appraisal of Derwentwater low water levels : Volume 1 : hydrological and geological study |
5264 | Social impacts of stormwater management techniques including river management and SUDS |
5265 | Ecdyonurus dispar |
5266 | Annual N2O measurements and associated data: AC0213, Devon, 2011 |
5267 | Rhodochorton (Audouinella), |
5268 | Environment Agency Anglian region : Central area business plan 2001/02 |
5269 | Guidance on the assessment and interrogation of subsurface analytical contaminant fate and transport models (NC/99/38/1) |
5270 | NRA corporate plan 1994/95 : catchment management planning 5 year programme and timetable |
5271 | Technical and economic review of cement and lime process : a report to the Environment Agency |
5272 | Regional water quality monitoring and surveillance programme for 1992 : quality assessment of enclosed waters |
5273 | River Cole fisheries survey 1992 |
5274 | River Teme catchment management plan : third annual review, April 1998 - March 1999 |
5275 | The Restoration of Vegetation on Saltmarshes |