00285nam a2200133Ia 45000030006000000080041000060400015000471000021000622450020000832500010001032600009001135460012001220050017001340STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aThirkettle, G.L.  aBasic economics  aFifth  c1984  aEnglish20220125165606.0