00299nam a2200121Ia 45000030006000000080041000060400015000471000023000622450054000852600009001395460012001480050017001600STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aGangadas Mukherjee  aElementary co ordinate geometry of two dimensions  c1948  aEnglish20220125170013.0