00292nam a2200121Ia 4500003000400000005001700004008004100021082000800062100001500070245002600085260004900111300001000160TMU20260709160757.0160921s9999    xx            000 0 und d  a513  aPrasad. G.  aDifferential Calculus  bPothishala Private Limited c2001aAllahabad  a367p.