00741nam0 2200229 450 00002422520090311083937.020090311d1964----km-y0itay50------baengPLy-------001yyPlanning and economic developmentedited by Ignac Sachs, with a forewor d by Oskar LangeWarszawaPWL-Polish scientific publishersc1964XI, 259 p.23 cmPlanning and economic development59727Sachs,Ignacy070Lange,Oskar070ITUNIPARTHENOPE20090311RICAUNIMARC000024225111/602280NAVA2Planning and economic development59727UNIPARTHENOPE