526 | POLICY & PRACTICE FOR THE PROTECTION OF GROUNDWATER - DRAWINGS |
527 | 1967 - IBP Lake George, Uganda - starting to build the bedroom block |
528 | The regulation of salmon angling in Great Britain
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529 | Disturbing the season's due: plankton periodicity in Grassmere, 1987 |
530 | The Evaluation of Acoustic Doppler Current Profiler Equipment |
531 | Modelling phytoplankton development in the proposed Cardiff Bay Barrage
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532 | Dead zones, live markers: the biological environments of larger U.K. Rivers
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533 | The Impact Of Particulate Outputs Associated With Timber Harvesting |
534 | The evaluation of Grant/YSU 3800 water quality monitor |
535 | PVC : an evaluation using the Natural Step framework |
536 | Recommendations For The Processing And Presentation Of Groundwater Quality Data |
537 | Landfill and the water environment : NRA position statement |
538 | The vision for our environment : making it happen |
539 | Environment Agency guidance on the conditioning of intermediate level waste |
540 | Quality audit of biological samples for the 1991 river quality survey |
541 | The precious resource : a brief guide to managing our water resources |
542 | Quantification of the relationship between effluent quality and biological quality : final report |
543 | Priority and other specific polluting substances and the Water Framework Directive |
544 | 'Sea Vigil' water quality monitoring : the Humber estuary 1994 |
545 | Evaluation of historical data on the nutrient status of Esthwaite Water, Cumbria
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546 | An Aerial Photograph of Ferry House and The Pearsall Building |
547 | Review of existing practices for fluvial grass management throughout the NRA (213/1/Y) |
548 | The interpretation of rod and net catch data |
549 | Research and development in the Environment Agency : a short guide |
550 | Problems with sea trout and salmon in the Western Highlands |