| 626 | Land drainage byelaws 1981 and the Thames region flood defence byelaws 1991 |
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| 627 | State of the environment report 2001 : West Midlands Region |
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| 628 | River quality in England and Wales : a report of the 1990 survey |
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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 | Water related recreation strategy for the southern region : consultation draft 1997 |
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| 632 | Rivers of the Isle of Wight fact file |
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| 633 | The Influence of Variations in Flow on General Quality Assessment of Rivers |
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| 634 | Stratification in the Severn Estuary- Physical aspects and biological consequences |
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| 635 | The Mersey estuary : a report on environmental quality |
|---|
| 636 | Catches of migratory fish in the River Don, Aberdeenshire |
|---|
| 637 | Stream survey and assessment in the Ashford and Folkestone areas |
|---|
| 638 | Alternative Methods For The Biological Classification Of Rivers |
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| 639 | Toxic blue-green algae : a report by the National Rivers Authority |
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| 640 | Lakes, Ponds and Reservoirs in the Southern Region (NRA) |
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| 641 | The 1990 river and estuary classification survey of England and Wales |
|---|
| 642 | Dioxins and the River Doe Lea : plain English report |
|---|
| 643 | Water quality in Anglian Region : the first five years |
|---|
| 644 | The evaluation of an orion ammonium ion selective electrode (220/15/T) |
|---|
| 645 | The quality of rivers and estuaries in Northumbria region 1990 |
|---|
| 646 | General awareness, environment management and the Water Framework Directive (WFD) |
|---|
| 647 | An Independent Review of the Defra/EA Research and Development Joint |
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| 648 | Anthropogenic Impacts on the Hydrology of Rivers and Lochs |
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| 649 | Dissemination of the Revitalised FEH Rainfall-runoff Method |
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| 650 | Doe Lea restoration study : the work of WRc |
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