00343nam a2200133Ia 45000030006000000080041000060400015000471000022000622450066000842500010001502600020001605460012001800050017001920STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aBell Robert, J.T.  aElementary treatise on cordinate geometry of three dimensions  aThird  bMacmillanc1960  aEnglish20220125170016.0