00320nam a2200133Ia 45000030006000000080041000060400015000471000017000622450045000792600027001243000006001515460012001570050017001690STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aSharma, A.K.  aTextbook of index Number and Time Series  bDiscovery; Delhic2005  a0  aEnglish20220125170048.0