| 1801 | Herbarium Image: Potamogeton crispus |
|---|
| 1802 | Water quality modelling in the Environment Agency (Report no.28) : present practice and future challenges : Water Quality Modelling Group workshop proceedings |
|---|
| 1803 | Tabellaria |
|---|
| 1804 | Stephanodiscus, |
|---|
| 1805 | NRA Research and Development programme - 1994/95 and 1995/96 : schedule of on-going projects 1994/95 and proposed new starts in 1994/95 and 1995/96 |
|---|
| 1806 | Water resources development strategy : resource scheme costings. Supplementary report no. 6 |
|---|
| 1807 | Melosira, |
|---|
| 1808 | Herbarium Image: Hypericum tetrapterum |
|---|
| 1809 | River pollution and how to avoid it |
|---|
| 1810 | Herbarium Image: Carex laevigata |
|---|
| 1811 | Cladophora-ball, |
|---|
| 1812 | Pediastrum, |
|---|
| 1813 | Herbarium Image: Nasturtium officinale |
|---|
| 1814 | Herbarium Image: Potamogeton crispus |
|---|
| 1815 | The precious resource : a brief guide to managing our water resources |
|---|
| 1816 | The industrial fishery for sandeels |
|---|
| 1817 | Assessment of freshwater riverine environments using macrophytes : standard methodologies : final draft : biology laboratory procedures manual. Section C : test methods and procedures |
|---|
| 1818 | Lembadion, |
|---|
| 1819 | Herbarium Image: Chara aculeolata |
|---|
| 1820 | Herbarium Image: Sanguisorba officinalis |
|---|
| 1821 | Herbarium Image: Veronica anagallis-aquatica |
|---|
| 1822 | The biology of the sea trout. Summary of a symposium held at Plas Menai 24-26 October 1984 |
|---|
| 1823 | Herbarium Image: Carex otrubae |
|---|
| 1824 | Herbarium Image: Carex elata |
|---|
| 1825 | Eremosphaera, |
|---|
