1851 | Herbarium Image: Potamogeton crispus |
1852 | Water quality modelling in the Environment Agency (Report no.28) : present practice and future challenges : Water Quality Modelling Group workshop proceedings |
1853 | Tabellaria |
1854 | Stephanodiscus, |
1855 | 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 |
1856 | River Yealm catchment river water quality classification 1990 |
1857 | Water resources development strategy : resource scheme costings. Supplementary report no. 6 |
1858 | Melosira, |
1859 | Herbarium Image: Hypericum tetrapterum |
1860 | River pollution and how to avoid it |
1861 | Herbarium Image: Carex laevigata |
1862 | Cladophora-ball, |
1863 | Pediastrum, |
1864 | Herbarium Image: Nasturtium officinale |
1865 | Herbarium Image: Potamogeton crispus |
1866 | The precious resource : a brief guide to managing our water resources |
1867 | The industrial fishery for sandeels |
1868 | Assessment of freshwater riverine environments using macrophytes : standard methodologies : final draft : biology laboratory procedures manual. Section C : test methods and procedures |
1869 | Lembadion, |
1870 | Herbarium Image: Chara aculeolata |
1871 | Herbarium Image: Sanguisorba officinalis |
1872 | Herbarium Image: Veronica anagallis-aquatica |
1873 | The biology of the sea trout. Summary of a symposium held at Plas Menai 24-26 October 1984 |
1874 | Herbarium Image: Carex otrubae |
1875 | River Lim catchment river water quality classification 1990 |