00308nam a2200133Ia 45000030006000000080041000060400015000471000026000622450036000882500012001242600009001365460012001450050017001570STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aKewal Krishnan dewelt  aMicro economics or price theory  aSeventh  c1989  aEnglish20220125165614.0