00366nam a2200109Ia 4500008004100000082002300041245006000064260002100124490007000145650002100215650002000236220204s9999    xx            000 0 und d  aNR:63(035)bFAO.17 0aDiseases of oil palm, rubber and cocoa in North Sumatra  aMedanbFAOc1973  aStrengthening research on rubber and oil palm in North Sumatra 17  aOil palm disease  aRubber diseases