00313nam a2200133Ia 45000030006000000080041000060400015000471000015000622450045000772500010001222600018001325460012001500050017001620STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aSeth, M.L.  aTheory and practice of economic planning  aSixth  bS.Chandc1977  aEnglish20220125165633.0