00351nam a2200133Ia 45000030006000000080041000060400015000471000036000622450046000982500010001442600034001545460012001880050017002000STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aAjit Dasgupta, K.; Pearce, D.W.  aCost benefit analysis theory and practice  aFirst  bMacmillan press, Londonc1979  aEnglish20220125165515.0