000 00286nam a2200133Ia 4500
008 241129s9999 xx 000 0 und d
100 _aPng, Ivon
245 0 _aManagerial economics
250 _a2
260 _bBlackwell publisher
260 _c2002
300 _a569
942 _cBK
999 _c21582
_d21582