000 00329nam a2200121Ia 4500
008 220216s9999 xx 000 0 und d
100 _aMei Tongxian
245 4 _aThe Variability and specification of natural rubber in China
650 _aClassification scheme
650 _aNatural rubber
700 _aWei Yushan
942 _cJS
999 _c71154
_d71154