00326nam a2200133Ia 45000030006000000080041000060400015000471000023000622450046000852500011001312600021001425460012001630050017001750STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aHarvey Leibenstein  aEconomic backwardness and economic growth  aSecond  bJohn Wileyc1965  aEnglish20220125165629.0