| 501 | Pearl Mussel Image: First out of the blocks |
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| 502 | Statement on public consultation for the Dove CMP : July 1995 |
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| 503 | The Warwickshire Avon catchment management plan : final plan : October 1994 |
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| 504 | FWR - User guide for assessing the impact of combined sewer overflows |
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| 505 | The National Centre for Environmental Data and Surveillance : general leaflet |
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| 506 | Project management and the scheme of delegation : a summary guide : April 1995 |
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| 507 | The Use of Immuno Based Techniques for Chemical Analysis |
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| 508 | Snapshots of the environment : integrated river basin management |
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| 509 | River quality in England and Wales : a report of the 1990 survey |
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| 510 | Snapshots of the environment : understanding coastal water quality |
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| 511 | The evaluation of EDT QSE 334 ammonium ion selective electrode (220/17/T) |
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| 512 | The evaluation of ingold ion selective ammonium electrode (220/23/T) |
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| 513 | The Influence of Variations in Flow on General Quality Assessment of Rivers |
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| 514 | Stratification in the Severn Estuary- Physical aspects and biological consequences |
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| 515 | The Mersey estuary : a report on environmental quality |
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| 516 | 'Sea Vigil' water quality monitoring : the East coast 1992-1993 |
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| 517 | Catches of migratory fish in the River Don, Aberdeenshire |
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| 518 | Stream survey and assessment in the Ashford and Folkestone areas |
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| 519 | Lakes, Ponds and Reservoirs in the Southern Region (NRA) |
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| 520 | The 1990 river and estuary classification survey of England and Wales |
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| 521 | The evaluation of an orion ammonium ion selective electrode (220/15/T) |
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| 522 | An Independent Review of the Defra/EA Research and Development Joint |
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| 523 | Anthropogenic Impacts on the Hydrology of Rivers and Lochs |
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| 524 | Dissemination of the Revitalised FEH Rainfall-runoff Method |
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| 525 | General guide to the prevention of water pollution |
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