00297nam a2200133Ia 45000030006000000080041000060400015000471000018000622450022000802500010001022600022001125460012001340050017001460STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aJohnstone, J.  aEconomics methods  aThird  bMcgraw hillc1984  aEnglish20220125170048.0