00294nam a2200121Ia 45000030006000000080041000060400015000471000023000622450049000852600009001345460012001430050017001550STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aDominick Salvatore  aTheory and problems of microeconomics theory  c1979  aEnglish20220125165604.0