000 00303nam a2200133Ia 4500
008 261001s9999 xx 000 0 und d
082 _a658.4 DRU
100 _aPeter F. Drucker
_936577
245 0 _aManaging for rules
260 _bHarper & Row
260 _c1964
650 _aManagement
942 _cBK
999 _c9278
_d9278