451 | Land use assessment of non-tidal main rivers in the southern region of the National Rivers Authority : report EX 2922 |
452 | The Natural (Baseline) Quality Of Groundwaters In England And Wales: The Permo-Triassic Sandstones Of Cumbria, North-West England; |
453 | PhD Research. Gary Stephen Rushworth. The role of aquatic macroinvertebrates within reedswamps |
454 | POLICY & PRACTICE FOR THE PROTECTION OF GROUNDWATER - DRAWINGS |
455 | The River Eden Demonstration Test Catchment (DTC) Data |
456 | 1967 - IBP Lake George, Uganda - starting to build the bedroom block |
457 | The regulation of salmon angling in Great Britain
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458 | Disturbing the season's due: plankton periodicity in Grassmere, 1987 |
459 | The Evaluation of Acoustic Doppler Current Profiler Equipment |
460 | Modelling phytoplankton development in the proposed Cardiff Bay Barrage
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461 | Dead zones, live markers: the biological environments of larger U.K. Rivers
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462 | The Impact Of Particulate Outputs Associated With Timber Harvesting |
463 | The evaluation of Grant/YSU 3800 water quality monitor |
464 | PVC : an evaluation using the Natural Step framework |
465 | Recommendations For The Processing And Presentation Of Groundwater Quality Data |
466 | Landfill and the water environment : NRA position statement |
467 | Environment Agency guidance on the conditioning of intermediate level waste |
468 | Pesticides in the aquatic environment 1997 full report |
469 | The precious resource : a brief guide to managing our water resources |
470 | Charging for discharges scheme : guidance to the agricultural industry |
471 | Priority and other specific polluting substances and the Water Framework Directive |
472 | 'Sea Vigil' water quality monitoring : the Humber estuary 1994 |
473 | Evaluation of historical data on the nutrient status of Esthwaite Water, Cumbria
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474 | An Aerial Photograph of Ferry House and The Pearsall Building |
475 | Review of existing practices for fluvial grass management throughout the NRA (213/1/Y) |