00301nam a2200121Ia 45000030006000000080041000060400015000471000018000622450050000802600020001305460012001500050017001620STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aFerrers, N.M.  aElementary treatise on trilinear co ordinates  bMacmillanc1890  aEnglish20220125170015.0