| 5051 | Managing water resources NRA |
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| 5052 | Mean Trophic Rank: A User's Manual |
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| 5053 | National Rivers Authority annual report and accounts 1990/91 |
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| 5054 | 'Sea Vigil' water quality monitoring : the East Anglian coast 1994 |
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| 5055 | River Severn upper reaches catchment management plan : first annual review : July 1995 - June 1996 |
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| 5056 | Technical Summary - Quantifying Point Source Inputs of Pesticides to River Catchments |
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| 5057 | 1996 Hit Lists, Final Draft Annex 1A High Load Hit List |
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| 5058 | Rhyzophydium |
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| 5059 | North West recreation, biology and conservation annual report 2000-2001 |
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| 5060 | River Welland navigation |
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| 5061 | The effects of ammonia in discharges from Hogsmill Valley sewage treatment works on the water quality of the River Thames at Teddington |
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| 5062 | The Identification of Oestrogenic Effects in Wild Fish |
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| 5063 | Environmental appraisal of Derwentwater low water levels : Volume 1 : hydrological and geological study |
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| 5064 | Social impacts of stormwater management techniques including river management and SUDS |
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| 5065 | Ecdyonurus dispar |
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| 5066 | Rhodochorton (Audouinella), |
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| 5067 | Environment Agency Anglian region : Central area business plan 2001/02 |
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| 5068 | Guidance on the assessment and interrogation of subsurface analytical contaminant fate and transport models (NC/99/38/1) |
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| 5069 | NRA corporate plan 1994/95 : catchment management planning 5 year programme and timetable |
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| 5070 | Technical and economic review of cement and lime process : a report to the Environment Agency |
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| 5071 | Regional water quality monitoring and surveillance programme for 1992 : quality assessment of enclosed waters |
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| 5072 | River Cole fisheries survey 1992 |
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| 5073 | River Teme catchment management plan : third annual review, April 1998 - March 1999 |
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| 5074 | The Restoration of Vegetation on Saltmarshes |
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| 5075 | Interim report on the environmental impacts of the drought on Yorkshire rivers April 1995 to April 1996 |
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