00292nam a2200133Ia 45000030006000000080041000060400015000471000020000622450028000822500010001102600009001205460012001290050017001410STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aBhabatosh Datta  aEssay in plan economics  aFirst  c1963  aEnglish20220125165621.0