00319nam a2200097Ia 4500008004100000082002400041245008600065260002900151650002100180650002000201220204s9999    xx            000 0 und d  aNR:631.81975bRRM;1 0aRRIM course on soils, nutrition and management of soils and rubber 17-22 Feb 1975  aKuala LumpurbRRIMc1975  aRubber nutrients  aSoil management