| 26 | The River Test. 1991. |
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| 27 | Enhancing the River Tamar |
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| 28 | Drought : the dry facts |
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| 29 | The Lowermoor environment report |
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| 30 | The Waterways Bird Survey |
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| 31 | Enhancing the River Otter |
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| 32 | The Ouse washes (folder) |
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| 33 | Sussex by the sea |
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| 34 | Wetlands in the Midlands |
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| 35 | The Severn Bore 1996 |
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| 36 | Bacteriological survey : The Wash |
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| 37 | The management of the water resources of the Lark groundwater unit |
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| 38 | Review of the findings of the prescribed flow at the Wallers Haven |
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| 39 | The management of the water resources of the Little Ouse groundwater unit |
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| 40 | An aerial photograph of The Ferry House prior to the construction of The Pearsall Building |
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| 41 | The water quality of the Humber Estuary 1992 : a report from The Humber Estuary Committee |
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| 42 | The effects of flow reduction in the River Dee on the aquatic environment |
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| 43 | The influx of black magnetic spherules to the lakes of the English Lake District |
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| 44 | The drought of 1995 : a report to the Secretary of State for the Environment |
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| 45 | A guide to the interpretation of the electron micrographs contained within the "Ken Clarke Collection" |
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| 46 | Angle on the Broads : helping you get the most out of fishing on the Broads |
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| 47 | The quality of the Humber Estuary 1980-1990 : report of the National Rivers Authority |
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| 48 | The importance of sediment release of phosphorus in the restoration of the Norfolk Broads |
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| 49 | The Thames navigation : charting the future : a consultation document issued by the NRA Thames Region |
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| 50 | Back to life : bringing the environment back to the people of the North West |
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