00331nam a2200133Ia 45000030006000000080041000060400015000471000031000622450045000932500012001382600018001505460012001680050017001800STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aSeth, M.L.; Velayatham, S.  aTheory and practice of economic planning  aSeventh  bS.Chandc1980  aEnglish20220125165623.0