| 76 | The greening of Grasmere: its plankton periodicity in 1988 |
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| 77 | Snapshots of the environment : understanding coastal water quality |
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| 78 | Coniston OS map related to the Seismic Survey 1983 |
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| 79 | Quality audit of biological samples for the 1990 river quality survey |
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| 80 | Proposals for statutory water quality objectives : report of the National Rivers Authority |
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| 81 | Sustainable urban drainage : an introduction : protecting the quality of our environment |
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| 82 | The River Dee catchment management plan : consultation report : June 1994 |
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| 83 | A guide to sustainable urban drainage : protecting the quality of our environment |
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| 84 | Fish Guide 1997/98 A Guide to day ticket fisheries in the Midlands |
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| 85 | The 1990 river and estuary classification survey of England and Wales |
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| 86 | Landfill and the water environment : NRA position statement |
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| 87 | Snapshots of the environment : managing our freshwater fisheries |
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| 88 | Snapshots of the environment : a new environmental approach |
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| 89 | Second Coniston OS map related to the Seismic Survey 1983 |
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| 90 | Note 2 by Professor Gerald Sargent regarding the Coniston Seismic Survey 1983 |
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| 91 | Note 1 by Professor Gerald Sargent regarding the Coniston Seismic Survey 1983 |
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| 92 | Policy and practice for the protection of groundwater |
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| 93 | Policy and practice for the protection of groundwater |
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| 94 | River water quality in the Midlands 1994/95 : water quality summary data |
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| 95 | Policy and practice for the protection of floodplains |
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| 96 | The quality of rivers in England and Wales (1990 to 1995) |
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| 97 | Policy and practice for the protection of groundwater - NRA leaflet |
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| 98 | Conservation in the Severn-Trent Region (NRA Severn-Trent 57)
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| 99 | The River Thame : catchment review : first draft - 16th Februrary 1996 |
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| 100 | Charging for discharges scheme : guidance to the agricultural industry |
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