00331nam a2200133Ia 4500008004100000020001800041041001200059082001800071100003800089245002500127250001200152260002500164300000800189231217s9999    xx            000 0 und d  a81-7758-100-7  aEnglish  a658.15  PET;6  aPetersen, Craig H. Lewis, Cris W. 0aManagerial economics  a4th ed.  c1999bPearsonaDelhi  a688