00330 a2200109 4500082001800000100002300018245004800041260006700089300002000156650001900176700002500195 a633.8952bHAN aPeries, O.S. eed. aA handbook of rubber culture and processing aAgalawattabRubber Research Institute of Sri Lankac1970g1983 axii,363p.c25cm aRubber Culture aFernando, D.M. eed.