00313nam a2200133Ia 45000030006000000080041000060400015000471000016000622450052000782500011001302600009001415460012001500050017001620STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aTaro Yamane  aMathematics for economists an elementary survey  aSecond  c1973  aEnglish20220125170056.0