00335nam a2200097Ia 4500008004100000100001500041245005500056260009200111650002000203650001400223220216s9999    xx            000 0 und d  aPeries O S 0aSeventy five years of rubber research in Sri Lanka  bProceedings of the International Rubber Conference, Colombo, 1984, V1. Part 2; p721-723  aRubber research  aSri Lanka