00292nam a2200133Ia 45000030006000000080041000060400015000471000023000622450025000852500010001102600009001205460012001290050017001410STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aMilton Spencer, H.  aManagerial economics  aThird  c1968  aEnglish20220125165635.0