3601 | Herbarium Image: Vulpia bromoides and Aira caryophyllea |
3602 | Diagnostic Drawing: Coccolithophorids, |
3603 | LOIS : proceedings of a Humber seminar : 17 May 2001 |
3604 | Blue-green algal monitoring 1995-1997 |
3605 | Chlorella, |
3606 | Sapiston River support scheme : test pumping of observation boreholes (92/6/362) |
3607 | NRA research and development programme - 1995/96 : schedule of on-going projects and proposed new starts |
3608 | Rivers and wetlands : best practice guidelines |
3609 | Annual N2O measurements and associated data: AC0213, Northumberland, 2012 |
3610 | National Rivers Authority/Po River Basin Authority collaboration programme : (collection of documents) |
3611 | The Ribble fisheries management plan : a consultation document produced by the National Rivers Authority |
3612 | Sources of farm pollution and impact on river quality : interim report (001/6/W) |
3613 | Diagnostic Drawing: Cocolith types, |
3614 | Water resources development options : final report. Volume 2 : technical appendices |
3615 | Herbarium Image: Achillea ptarmica |
3616 | New style charging schemes for discharges and abstractions (Note 16) |
3617 | Proposed scheme of abstraction charges 1993-94 |
3618 | Flood risk management in North Wessex area : be prepared for flooding |
3619 | The National Rivers Authority employee attitude survey : summary |
3620 | The Use of a Hydroacoustic Counter for Assessing Salmon Stocks |
3621 | Factors affecting natural smolt production |
3622 | Dugesia tigrina, |
3623 | Herbarium Image: Potamogeton berchtoldii |
3624 | Diagnostic Drawing: Chaetophora and related genera, |
3625 | Geochemical process modelling : progress report for the period Jan - March 1993 (0295/11/A) |