004360000a22001450004500020001500000060000800015082001500023100002000038100001600058245015300074260002700227260000900254300000800263650001900271  a0125639503  a100  a576.15 PRE  aDickinson,  C H  aPreece, T F  aEcology of leaf surface micro - organisms : proceedigns of an internaitonal symposium held at the universtiy of newcastle upon Tyne, Septemeber 1970  aLondon, Academic press  c1971  a640  aMicro organism