651 | Aquatic Plant Management Group Project |
652 | Fish and the Ecological Assessment of Lakes and Rivers for the Water Framework Directive |
653 | The NRA navigations |
654 | Environmental planning issues in the North Wessex area |
655 | River quality objectives |
656 | North West Norfolk catchment management plan : consultation report : March 1995 |
657 | Ipswich flood defences |
658 | NRA facts 1990 |
659 | London's river (information pack on the River Thames) |
660 | Freshwater Tamar and tributaries catchment management plan : action plan |
661 | River Usk barrage position statement, 18th January 1991 |
662 | Exe freshwater model : quasar model design |
663 | A Post Mortem Study of Otters (Lutra Lutra) Found Dead in South West England |
664 | River Itchen catchment management plan : consultation report |
665 | Macroinvertebrates of the River Nar : Great Ouse catchment : draft report |
666 | River Darent catchment management plan : consultation report |
667 | Clear waters : priorities for the National Rivers Authority after one year's work : the Laphroaig lecture by the Rt. Hon. the Lord Crickhowell, chairman - National Rivers Authority. Delivered on Tuesday, 30th October 1990 at the Fishmongers' Hall, London |
668 | Regional water quality monitoring and surveillance programme for 1992 : quality investigations in controlled waters |
669 | Upper Nene catchment management plan : consultation report summary |
670 | Rainfall-runoff and other modelling for ungauged/low-benefit locations |
671 | River Glen : river channel assessment : main report |
672 | Dorset Stour : first annual review : January 1998 - December 1998 |
673 | Groundwater development scheme : Little Ouse and Thet catchment : control rules |
674 | Mersey sub-catchment report : February 1996 |
675 | Health and ecotoxicology of otters: summary of four studies from 1988-2003 |