000 00246nam a2200097Ia 4500
008 230915s9999 xx 000 0 und d
050 _aQA 76.79 .E95 P54 1990 C.1
100 _aPIGFORD,D.V
245 0 _aEXPERTS SYSTEMS FOR BUSINESS
942 _cBK
999 _c184170
_d184170