000 00320nam a2200121Ia 4500
008 220216s9999 xx 000 0 und d
245 0 _aTechnical classification of natural rubber
260 _bPlanters Bulletin
_c1958
300 _a28-34
650 _aNatural rubber
650 _aTechnical classification
942 _cJS
999 _c70313
_d70313