000 00299nam a2200109Ia 4500
008 231011s9999 xx 000 0 und d
041 _aeng
100 _aPeter F.Drucker
245 _aInnovation & Entrepreneurship : Principles and Practice
260 _bHarper & Row Pubs.,Newyork -
365 _b637
999 _c885133
_d885133