00273nam a2200121Ia 45000030006000000080041000060400015000471000029000622450022000912600009001135460012001220050017001340STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aJanardhanan Pillai, C.P.  aBasic mathematics  c1962  aEnglish20220125170025.0