00320nam a2200133Ia 4500003000400000005001700004008004100021020001800062100002000080245002600100250000800126260004200134300001000176TMU20250719111756.0230125s9999    xx            000 0 und d  a9788121904711  aNarayan, Shanti 0aDifferential Calculus  a1st  bS. Chand and Companyc2018aNew Delhi  a572p.