00337nam a2200109Ia 4500008004100000082002300041245008400064260002800148300000900176490001400185650002800199130903s9999    xx            000 0 und d  a631.001.5(910)  M6  aIndonesian farming systems research and development; the food crop sub systems.  aIndonesiabBogorcCRIFC  a1986  avii,131p.  aFarming system,Agronomy