000 00311nam a2200121Ia 4500
008 220204s9999 xx 000 0 und d
082 _a66(031)
_bULL.A4
245 0 _aUllman's encyclopaedia of industrial chemistry. V A4
250 _aEd.5
260 _aWeinheim
_bVCH
_c1985
650 _aButadiene
942 _cBK
999 _c39062
_d39062