000 00307nam a2200109Ia 4500
008 240109s9999 xx 000 0 und d
041 _aeng
100 _aPeter F.Drucker
245 _aInnovation & Entrepreneurship : Principles and Practice
260 _bHarper & Row Pubs.,Newyork
650 _aManagement
999 _c1021544
_d1021544