551 | Regional fishing guide : a guide to day ticket waters in the Midlands |
552 | Flood warning information for the Hertfordshire/Essex border : River Stort catchment |
553 | An environmental snapshot for the Anglian region 2003 |
554 | Waste : strategic waste management survey : landfill within the East Midlands planning region |
555 | Sustainable urban drainage : an introduction : protecting the quality of our environment |
556 | Identification of water quality problems in the Strat and Neet catchments |
557 | Snapshots of the environment : managing our freshwater fisheries |
558 | The effects of fishing at low water levels |
559 | 1967 - George and Gideon cutting mbati for the bedroom block. |
560 | 1967 - Quakers arriving on the shore of L.George. |
561 | First annual review of the Taw/Torridge estuary catchment management plan (1996)
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562 | Suffolk estuarine strategies : Blyth estuary strategy : introduction to the strategy |
563 | Method for the assessment of river water quality using benthic macroinvertebrates |
564 | The National Groundwater and Contaminated Land Centre (NGWCLC) |
565 | The evaluation of a Philips ammonium ion selective electrode (220/14/T) |
566 | The greening of Grasmere: its plankton periodicity in 1988 |
567 | A strategic review of the petroleum refinery Industry Sector |
568 | Guidelines for river corridor surveys in the NRA : February 1992. draft 3 |
569 | Second annual review of the Sid/Otter catchment management plan 1999 |
570 | Contribution of small streams to potential fish production in the Conwy catchment |
571 | NRA strategy for reducing the concentration of pesticides in controlled waters |
572 | Low-cost modifications of the Crump weir to improve fish passage |
573 | 'Sea Vigil' water quality monitoring : the Wash 1992-1993 |
574 | Second annual review of the Seaton, Looe and Fowey catchment management plan |
575 | The Yarrow catchment : recommendations for statutory water quality objectives |