00296nam a2200133Ia 45000030006000000080041000060400015000471000026000622450026000882500010001142600009001245460012001330050017001450STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aRay, M.; Sharma, G.C.  aDifferential calculus  aSixth  c1981  aEnglish20220125165945.0