| 576 | Land use assessment of non-tidal main rivers in the southern region of the National Rivers Authority : report EX 2922 |
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| 577 | The Natural (Baseline) Quality Of Groundwaters In England And Wales: The Permo-Triassic Sandstones Of Cumbria, North-West England; |
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| 578 | PhD Research. Gary Stephen Rushworth. The role of aquatic macroinvertebrates within reedswamps |
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| 579 | POLICY & PRACTICE FOR THE PROTECTION OF GROUNDWATER - DRAWINGS |
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| 580 | The River Eden Demonstration Test Catchment (DTC) Data |
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| 581 | 1967 - IBP Lake George, Uganda - starting to build the bedroom block |
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| 582 | The regulation of salmon angling in Great Britain
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| 583 | Disturbing the season's due: plankton periodicity in Grassmere, 1987 |
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| 584 | The Evaluation of Acoustic Doppler Current Profiler Equipment |
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| 585 | Modelling phytoplankton development in the proposed Cardiff Bay Barrage
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| 586 | Dead zones, live markers: the biological environments of larger U.K. Rivers
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| 587 | The Impact Of Particulate Outputs Associated With Timber Harvesting |
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| 588 | PVC : an evaluation using the Natural Step framework |
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| 589 | Recommendations For The Processing And Presentation Of Groundwater Quality Data |
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| 590 | Landfill and the water environment : NRA position statement |
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| 591 | The vision for our environment : making it happen |
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| 592 | Environment Agency guidance on the conditioning of intermediate level waste |
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| 593 | Quality audit of biological samples for the 1991 river quality survey |
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| 594 | Pesticides in the aquatic environment 1997 full report |
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| 595 | The precious resource : a brief guide to managing our water resources |
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| 596 | Quantification of the relationship between effluent quality and biological quality : final report |
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| 597 | Charging for discharges scheme : guidance to the agricultural industry |
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| 598 | Priority and other specific polluting substances and the Water Framework Directive |
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| 599 | 'Sea Vigil' water quality monitoring : the Humber estuary 1994 |
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| 600 | Evaluation of historical data on the nutrient status of Esthwaite Water, Cumbria
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