00317nam a2200133Ia 45000030006000000080041000060400015000471000035000622450028000972500013001252600016001385460012001540050017001660STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aSundharam, K.P.M.; Vaish, M.C.  aPrinciples of economics  aTwelveth  bVikasc1976  aEnglish20220125165612.0