00298nam a2200121Ia 45000030006000000080041000060400015000471000023000622450053000852600009001385460012001470050017001590STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aMukherjee Gangadas  aElementary co ordinate geometry of two dimension  c1948  aEnglish20220125170014.0