00289nam a2200133Ia 45000030006000000080041000060400015000471000018000622450026000802500011001062600009001175460012001260050017001380STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aJhingan, M.L.  aMicro economic theory  aFourth  c1990  aEnglish20220125165606.0