551 | The National Centre for Environmental Data and Surveillance : general leaflet |
552 | Project management and the scheme of delegation : a summary guide : April 1995 |
553 | The groundwater regulations (Bilingual) : Rheoliadau dwr daear (Bilingual) |
554 | The Use of Immuno Based Techniques for Chemical Analysis |
555 | Snapshots of the environment : integrated river basin management |
556 | Water from the River Dee : a working partnership |
557 | Land drainage byelaws 1981 and the Thames region flood defence byelaws 1991 |
558 | Snapshots of the environment : understanding coastal water quality |
559 | The evaluation of EDT QSE 334 ammonium ion selective electrode (220/17/T) |
560 | The evaluation of ingold ion selective ammonium electrode (220/23/T) |
561 | Rivers of the Isle of Wight fact file |
562 | The Influence of Variations in Flow on General Quality Assessment of Rivers |
563 | Stratification in the Severn Estuary- Physical aspects and biological consequences |
564 | The Mersey estuary : a report on environmental quality |
565 | 'Sea Vigil' water quality monitoring : the East coast 1992-1993 |
566 | Catches of migratory fish in the River Don, Aberdeenshire |
567 | Stream survey and assessment in the Ashford and Folkestone areas |
568 | The 1990 river and estuary classification survey of England and Wales |
569 | The evaluation of an orion ammonium ion selective electrode (220/15/T) |
570 | An Independent Review of the Defra/EA Research and Development Joint |
571 | Anthropogenic Impacts on the Hydrology of Rivers and Lochs |
572 | Dissemination of the Revitalised FEH Rainfall-runoff Method |
573 | General guide to the prevention of water pollution |
574 | Guidance for the Development of Housing on Land Affected by Contamination |
575 | Guidance on the use of Soil Screening Values for Ecological Risk Assessment |