| 51 | Assessment of the impact of discharges from Meldon Quarry on the water quality of the West Okement River |
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| 52 | Investigation into the probable cause of the 1999 failure of the EC bathing waters directive at Seaton (Devon) beach (70210103) (2000) |
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| 53 | Pollution control on the River Alt |
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| 54 | Fish found in the tidal Thames |
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| 55 | The River Lark project Model Manual |
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| 56 | River water quality in the Midlands 1997 |
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| 57 | Lake restoration : the role of biomanipulation : a one day seminar held in the Broads 18th March 1993 : organised by the National Rivers Authority and the Broads Authority |
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| 58 | Study of the River Stour, Kent |
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| 59 | The River Ogmore action plan support document |
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| 60 | The Tame catchment (NRA Severn-Trent 67) |
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| 61 | Safeguarding the lower bristol avon - public consultation |
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| 62 | The river Aire conservation within the catchment : a summary of survey methods and information held on the wildlife of the river Aire catchment |
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| 63 | The River Lark project Final Report |
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| 64 | Canoeist guide to the River Severn |
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| 65 | The Nidd and Wharfe catchment (river factfiles) |
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| 66 | Guide to the Medway navigation 1994 |
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| 67 | River water quality in the Midlands 1998 |
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| 68 | Phosphate in the cut-off channel |
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| 69 | Investigation into the 1999 failure of the European Community bathing waters directive at Beer beach (2001) |
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| 70 | A Status Report on the Direct Oxygenation of the Tywi Estuary - October 1989 |
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| 71 | Estuarine fish survey 1989 : inferences on the pollution status of the Thames estuary |
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| 72 | The water protection zone (River Dee catchment) designation order : supplementary paper in support of the application |
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| 73 | The Effect of Atrazine Exposure on the Timing of Salmon (Salmo salar L.) Smolt Emigration |
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| 74 | Study of the behaviour and impact of two sewage treatment works of the Thames catchment |
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| 75 | The Ribble fisheries management plan : a consultation document produced by the National Rivers Authority |
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