00310nam a2200121Ia 45000030006000000080041000060400015000471000021000622450050000832600026001335460012001590050017001710STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aWassily Leontiaf  aEssay in economic theories facts and policies  bBasil Blackwellc1977  aEnglish20220125165621.0