| 626 | Land drainage byelaws 1981 and the Thames region flood defence byelaws 1991 |
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| 627 | River quality in England and Wales : a report of the 1990 survey |
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| 628 | Snapshots of the environment : understanding coastal water quality |
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| 629 | The evaluation of EDT QSE 334 ammonium ion selective electrode (220/17/T) |
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| 630 | The evaluation of ingold ion selective ammonium electrode (220/23/T) |
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| 631 | Rivers of the Isle of Wight fact file |
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| 632 | The Influence of Variations in Flow on General Quality Assessment of Rivers |
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| 633 | The Mersey estuary : a report on environmental quality |
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| 634 | Catches of migratory fish in the River Don, Aberdeenshire |
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| 635 | Lakes, Ponds and Reservoirs in the Southern Region (NRA) |
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| 636 | The evaluation of an orion ammonium ion selective electrode (220/15/T) |
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| 637 | An Independent Review of the Defra/EA Research and Development Joint |
|---|
| 638 | Anthropogenic Impacts on the Hydrology of Rivers and Lochs |
|---|
| 639 | Dissemination of the Revitalised FEH Rainfall-runoff Method |
|---|
| 640 | General guide to the prevention of water pollution |
|---|
| 641 | Guidance for the Development of Housing on Land Affected by Contamination |
|---|
| 642 | Guidance on the use of Soil Screening Values for Ecological Risk Assessment |
|---|
| 643 | Highway runoff: Effects of soluble pollutants on the ecology of receiving waters |
|---|
| 644 | Life cycle assessment of disposable and reusable nappies in the UK |
|---|
| 645 | Managing the social aspects of flooding: Synthesis Report |
|---|
| 646 | Model For Investigating The Impacts Of Groundwater Abstraction |
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| 647 | National guidelines for the production of NRA regions 1990/91 regional plans |
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| 648 | Policy and practice for the protection of groundwater : regional appendix Welsh region |
|---|
| 649 | Procurement legislation and the NRA : a brief guide |
|---|
| 650 | Strategic review of development and flood risk : the River Welland catchment |
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