00417nam a2200133Ia 4500008004100000100001800041245010100059260003200160300001100192650001700203650002000220700002500240700001800265220216s9999    xx            000 0 und d  aWalpita N C C 0aUse of solar energy for the drying of crepe rubber : Pt 1 Model solar collector and drying tower  bRubber Board Bulletinc1986  a16-Sep  aCrepe rubber  aSolar collector  aGoonatilleka M D R J  aWeerasingha S