00257nam a2200109Ia 4500008004100000041000800041082002400049100001400073245004300087260000900130300000800139211209s1978    xx            000 0 und d  aeng  a658.403 N78 LEV/KIR  aLEVIN R I  aQUANTITATIVE APPROACHES TO MANAGEMENT   c1978  a625