| 3551 | Dinobryon suecicum |
|---|
| 3552 | Herbarium Image: Juncus bulbosus |
|---|
| 3553 | Herbarium Image: Apium nodiflorum |
|---|
| 3554 | Diagnostic Drawing: Diatoms freshwater pennales, |
|---|
| 3555 | Herbarium Image: Vulpia bromoides and Aira caryophyllea |
|---|
| 3556 | Adur and Ouse catchment abstraction management strategy : final strategy |
|---|
| 3557 | Diagnostic Drawing: Coccolithophorids, |
|---|
| 3558 | LOIS : proceedings of a Humber seminar : 17 May 2001 |
|---|
| 3559 | Blue-green algal monitoring 1995-1997 |
|---|
| 3560 | Chlorella, |
|---|
| 3561 | Sapiston River support scheme : test pumping of observation boreholes (92/6/362) |
|---|
| 3562 | NRA research and development programme - 1995/96 : schedule of on-going projects and proposed new starts |
|---|
| 3563 | Rivers and wetlands : best practice guidelines |
|---|
| 3564 | Annual N2O measurements and associated data: AC0213, Northumberland, 2012 |
|---|
| 3565 | National Rivers Authority/Po River Basin Authority collaboration programme : (collection of documents) |
|---|
| 3566 | The Ribble fisheries management plan : a consultation document produced by the National Rivers Authority |
|---|
| 3567 | Sources of farm pollution and impact on river quality : interim report (001/6/W) |
|---|
| 3568 | Diagnostic Drawing: Cocolith types, |
|---|
| 3569 | Water resources development options : final report. Volume 2 : technical appendices |
|---|
| 3570 | Herbarium Image: Achillea ptarmica |
|---|
| 3571 | New style charging schemes for discharges and abstractions (Note 16) |
|---|
| 3572 | Proposed scheme of abstraction charges 1993-94 |
|---|
| 3573 | Flood risk management in North Wessex area : be prepared for flooding |
|---|
| 3574 | The National Rivers Authority employee attitude survey : summary |
|---|
| 3575 | The Use of a Hydroacoustic Counter for Assessing Salmon Stocks |
|---|
