476 | Land drainage byelaws 1981 and the Thames region flood defence byelaws 1991 |
477 | River quality in England and Wales : a report of the 1990 survey |
478 | Snapshots of the environment : understanding coastal water quality |
479 | The evaluation of EDT QSE 334 ammonium ion selective electrode (220/17/T) |
480 | The evaluation of ingold ion selective ammonium electrode (220/23/T) |
481 | Rivers of the Isle of Wight fact file |
482 | Stratification in the Severn Estuary- Physical aspects and biological consequences |
483 | 'Sea Vigil' water quality monitoring : the East coast 1992-1993 |
484 | Lakes, Ponds and Reservoirs in the Southern Region (NRA) |
485 | The 1990 river and estuary classification survey of England and Wales |
486 | The evaluation of an orion ammonium ion selective electrode (220/15/T) |
487 | An Independent Review of the Defra/EA Research and Development Joint |
488 | Anthropogenic Impacts on the Hydrology of Rivers and Lochs |
489 | Dissemination of the Revitalised FEH Rainfall-runoff Method |
490 | General guide to the prevention of water pollution |
491 | Guidance on the use of Soil Screening Values for Ecological Risk Assessment |
492 | Highway runoff: Effects of soluble pollutants on the ecology of receiving waters |
493 | Life cycle assessment of disposable and reusable nappies in the UK |
494 | Managing the social aspects of flooding: Synthesis Report |
495 | National guidelines for the production of NRA regions 1990/91 regional plans |
496 | Operational mechanisms for the protection and enhancement of headwaters |
497 | Procurement legislation and the NRA : a brief guide |
498 | Strategic review of development and flood risk : the River Welland catchment |
499 | Strategic review of development and flood risk : the River Witham catchment |
500 | Survey of copper speciation in the Great Ouse estuary |