00307nam a2200121Ia 4500008004100000020001800041082001500059100002000074245002600094250001500120260003900135300001100174190710s9999    xx            000 0 und d  a81-219-0471-4  a517.2 N164  aNarayan, Shanti 0aDifferential calculus  aRevised ed  aNew DelhibS. Chand & Co Ltdc2012  axi,572