501 | The use of herbicides in or near water |
502 | Status of rare fish : literature review of Freshwater Fish in the UK |
503 | Suffolk estuarine strategies : Alde and Ore estuary strategy : introduction to the strategy |
504 | Distribution of Azolla in the Great Ouse catchment |
505 | Leachate Monitoring For The Brogborough Test Cell Project |
506 | Regional fishing guide : a guide to day ticket waters in the Midlands |
507 | An investigation into the sewage system and storm overflow at Beer (1997) |
508 | River Axe Fish Study - Evaluation of Fish Movements in the Estuary |
509 | Waste : strategic waste management survey : landfill within the East Midlands planning region |
510 | Sustainable urban drainage : an introduction : protecting the quality of our environment |
511 | Snapshots of the environment : managing our freshwater fisheries |
512 | The effects of fishing at low water levels |
513 | 1967 - George and Gideon cutting mbati for the bedroom block. |
514 | 1967 - Quakers arriving on the shore of L.George. |
515 | First annual review of the Taw/Torridge estuary catchment management plan (1996)
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516 | Suffolk estuarine strategies : Blyth estuary strategy : introduction to the strategy |
517 | Method for the assessment of river water quality using benthic macroinvertebrates |
518 | Development of Operational and Policy Guidance on the Use of Hydrogen Peroxide |
519 | The National Groundwater and Contaminated Land Centre (NGWCLC) |
520 | The evaluation of a Philips ammonium ion selective electrode (220/14/T) |
521 | The greening of Grasmere: its plankton periodicity in 1988 |
522 | A strategic review of the petroleum refinery Industry Sector |
523 | Guidelines for river corridor surveys in the NRA : February 1992. draft 3 |
524 | NRA strategy for reducing the concentration of pesticides in controlled waters |
525 | Low-cost modifications of the Crump weir to improve fish passage |