00438nam a2200181Ia 4500003000600000005001700006008004100023020001800064040000900082082001600091100001900107245002700126250001300153260004000166300001100206650001400217650002500231GCWUF20231017060651.0170105s9999    xx            000 0 und d  a9788131519424  cMAIN  a338.50bHIR  aHirschey, Mark  aManagerial Economics /  aed. 12th  bCENGAGE Learning,aAndover :c2013.  aP. 836  aEconomics  vManagerial Economics