576 | The Use of Immuno Based Techniques for Chemical Analysis |
577 | Snapshots of the environment : integrated river basin management |
578 | Water from the River Dee : a working partnership |
579 | Land drainage byelaws 1981 and the Thames region flood defence byelaws 1991 |
580 | River quality in England and Wales : a report of the 1990 survey |
581 | Snapshots of the environment : understanding coastal water quality |
582 | The evaluation of EDT QSE 334 ammonium ion selective electrode (220/17/T) |
583 | The evaluation of ingold ion selective ammonium electrode (220/23/T) |
584 | Rivers of the Isle of Wight fact file |
585 | The Influence of Variations in Flow on General Quality Assessment of Rivers |
586 | 'Sea Vigil' water quality monitoring : the East coast 1992-1993 |
587 | Catches of migratory fish in the River Don, Aberdeenshire |
588 | Lakes, Ponds and Reservoirs in the Southern Region (NRA) |
589 | The 1990 river and estuary classification survey of England and Wales |
590 | The evaluation of an orion ammonium ion selective electrode (220/15/T) |
591 | An Independent Review of the Defra/EA Research and Development Joint |
592 | Anthropogenic Impacts on the Hydrology of Rivers and Lochs |
593 | Dissemination of the Revitalised FEH Rainfall-runoff Method |
594 | General guide to the prevention of water pollution |
595 | Guidance for the Development of Housing on Land Affected by Contamination |
596 | Highway runoff: Effects of soluble pollutants on the ecology of receiving waters |
597 | Life cycle assessment of disposable and reusable nappies in the UK |
598 | Managing the social aspects of flooding: Synthesis Report |
599 | Model For Investigating The Impacts Of Groundwater Abstraction |
600 | National guidelines for the production of NRA regions 1990/91 regional plans |