576 | Fish Guide 1997/98 A Guide to day ticket fisheries in the Midlands |
577 | Flood warning information for the river Witham and tributaries in Lincolnshire |
578 | Environmental assessment of selected abandoned minewaters in the North East region |
579 | Conservation and development of the River Eden spring salmon population |
580 | Flood warning information for North Surrey : The Bournes catchment |
581 | Habitat preferences of the bullhead (Cottus gobio) in some Norfolk rivers |
582 | England's river : a guide to the Thames from Remenham to Cookham |
583 | Regulation of dioxin releases from the Runcorn operations of ICI and EVC |
584 | Investigation of mercury contamination in the Red River catchment, West Cornwall |
585 | An investigation into the incidence of spurting from weeping wall slurry stores |
586 | NRA superannuation report and accounts for the period ended 31 March 1991 |
587 | Further guidance on the environmental assessment of projects |
588 | Assessing the impact of dewatering on water resources |
589 | The use and design of oil separators in surface water drainage systems |
590 | The utilisation of stick-pile otter holts in south east Wales |
591 | Improving the Environment Agency's contribution to wetland bird populations |
592 | Groundwater-surface Water Interactions in the Hyporheic Zone |
593 | River water quality in the Midlands 1994/95 : water quality summary data |
594 | Model Procedures for the Management of Land Contamination |
595 | Applications Of Artificial Intelligence For The Biological Surveillance Of River Quality |
596 | Reappraisal of the River Lee to Wheathampstead Mill |
597 | Business requirement specification : integrated accounting system for the (IAS) |
598 | Moston Brook Summary Report for the Evidence and Measures Project |
599 | Environmental planning issues in the North Wessex area |
600 | Strategy for the use of field instrumentation in water quality monitoring |