00293nam a2200121Ia 45000030006000000080041000060400015000471000016000622450034000782600030001125460012001420050017001540STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aBeach, E.F.  aEconomic models an exposition  bJohn Wiley and Sonsc1966  aEnglish20220125165617.0