| Title | Authors | Year | 
|---|---|---|
| Ambient Water Quality Criteria for copper | 
                               EPA, US  | 
                                                                                        1984 | 
| Effects of SO2 on light-modulated enzyme reactions | 
                               Alscher, R…  | 
                                                                                        1984 | 
| Key to the Common Plant Communities of Scotland | 
                               Robertson,…  | 
                                                                                        1984 | 
| Effects of acidic deposition on forest soils and vegetation | 
                               Abrahamsen…  | 
                                                                                        1984 | 
| Trace elements in soils and plants | 
                               Kabata-…  | 
                                                                                        1984 | 
| The effects of acidification on the ecology of streams in the upper Tywi catchment in west Wales. | 
                               Stoner, J.H…  | 
                                                                                        1984 | 
| Mycorrhizal fungi of Betula spp.: factors affecting their occurrence | 
                               Mason, P.A…  | 
                                                                                        1984 | 
| Two hundred years of acid rain | 
                               Press, M.C…  | 
                                                                                        1983 | 
| Raised nutrient levels change heathland into grassland | 
                               Heil, G.;…  | 
                                                                                        1983 | 
| Foliage damage in coniferous trees following volcanic ashfall from Mt. St. Helens. | 
                               Seymour, V.…  | 
                                                                                        1983 |