000 00327nam a2200121Ia 4500
008 220216s9999 xx 000 0 und d
100 _aPeries O S
245 0 _aProspects of the rubber industry
260 _bRubber Research Institute of Sri Lanka Bulletin
_c1973
300 _a13-14
650 _aRubber industry
942 _cJS
999 _c66042
_d66042