1. Conclusions of experiments on the effects of the selective weedkiller, 2,4-D on the vegetation of roadside verges;Balme,1956
2. Flora of the British Isles;Clapham,1962
3. Grassland ecology and wildlife management;Duffey,1974
4. The pattern of animal communities;Elton,1966
5. Weed Control Handbook, 2, Recommendations,1972