00304nam a2200133Ia 45000030006000000080041000060400015000471000016000622450044000782500010001222600009001325460012001410050017001530STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aSpeight, H.  aEconomics science of prices and incomes  aThird  c1972  aEnglish20220125165716.0