| 151 | Macroinvertebrates of the River Nar : Great Ouse catchment : draft report |
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| 152 | The Ely Ouse catchment management plan : final plan : January 1994 |
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| 153 | A report on the River Chew at Chewton Mendip, 6th August 1992 |
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| 154 | Guide to the use of control charts in water analysis |
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| 155 | Development of an Estuarine Classification Scheme for the Water Framework Directive |
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| 156 | River quality in England and Wales : a report of the 1990 survey |
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| 157 | Snapshots of the environment : understanding coastal water quality |
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| 158 | River water quality in the Midlands 1994/95 : water quality summary data |
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| 159 | Metallothionein in eels from the Thames Estuary : an indicator of environmental quality |
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| 160 | Strategy for the use of field instrumentation in water quality monitoring |
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| 161 | The Influence of Variations in Flow on General Quality Assessment of Rivers |
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| 162 | An assessment of the NRA algal growth inhibition test : 1993/4 |
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| 163 | The Mersey estuary : a report on environmental quality |
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| 164 | 'Sea Vigil' water quality monitoring : the East coast 1992-1993 |
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| 165 | Cyanobacteria (blue-green algae) in the south west region 1989 |
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| 166 | Stream survey and assessment in the Ashford and Folkestone areas |
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| 167 | Toxic blue-green algae : a report by the National Rivers Authority |
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| 168 | Results of the NRA Welsh regional marine bioaccumulation programme 1991-1993 : SE/EAU/94/8 |
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| 169 | The 1990 river and estuary classification survey of England and Wales |
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| 170 | Summary of monitoring activities on the blackwater estuary |
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| 171 | Water quality in Anglian Region : the first five years |
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| 172 | The evaluation of an orion ammonium ion selective electrode (220/15/T) |
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| 173 | The quality of rivers and estuaries in Northumbria region 1990 |
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| 174 | The Ribble Estuary 1992 surveys : summary of results |
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| 175 | Anthropogenic Impacts on the Hydrology of Rivers and Lochs |
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