00298nam a2200133Ia 45000030006000000080041000060400015000471000018000622450036000802500010001162600009001265460012001350050017001470STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aSaxleby, F.M.  aCourse in practical mathematics  aSixth  c1919  aEnglish20220125170024.0