00297nam a2200121Ia 45000030006000000080041000060400015000471000021000622450043000832600020001265460012001460050017001580STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aM,clelland, W.J.  aTreatise on the Geometry of the Circle  bMacmillanc1891  aEnglish20220125170015.0