| 26 | Investigation of mercury contamination in the Red River catchment, West Cornwall |
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| 27 | Environmental planning issues in the North Wessex area |
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| 28 | A Review of Methods for Assessing the Hydromorphology of Lakes |
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| 29 | Guide to freshwater fishing in the Northern area of Anglian Region |
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| 30 | Fish Guide 1997/98 A Guide to day ticket fisheries in the Midlands |
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| 31 | Non-compliance with water quality objectives on the Croyde stream (upper catchment) |
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| 32 | Identification of water quality problems in the Strat and Neet catchments |
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| 33 | River water quality in the Midlands 1994/95 : water quality summary data |
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| 34 | The quality of rivers in England and Wales (1990 to 1995) |
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| 35 | An assessment of river water quality in the River Kenn |
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| 36 | Guidelines for river corridor surveys in the NRA : February 1992. draft 3 |
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| 37 | Distribution of Azolla in the Great Ouse catchment |
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| 38 | The NRA in business : annual review and summary accounts 1993-94 |
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| 39 | Applications Of Artificial Intelligence For The Biological Surveillance Of River Quality |
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| 40 | Enhancing the environment : 25 case studies from Thames Region |
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| 41 | Non-compliance of the Bidwell Brook with river quality objectives |
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| 42 | River quality in England and Wales : a report of the 1990 survey |
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| 43 | Doe Lea restoration study : the work of WRc |
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| 44 | Assessment of the water quality before, during and post commissioning of the interim Falmouth sewage treatment scheme - Report No. TWQ/98/01- May 1998 |
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| 45 | River corridor strategic overview feasibility study : a report to the National Rivers Authority |
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| 46 | Where to fish on the River Wye and its tributaries : a guide to day ticket facilities |
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| 47 | River Teign corridor survey : prepared by Ecologue for the National Rivers Authority (South West Region) |
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| 48 | The Influence of Variations in Flow on General Quality Assessment of Rivers - Summary Document |
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| 49 | River Stour (2), Sudbury : report of a river corridor survey carried out for the National Rivers Authority, Anglian region |
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| 50 | River Lemon corridor survey : a report prepared by Ecologue for the National Rivers Authority (South West Region) |
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