00401nam a2200133 a 450000500170000000800410001702000180005804100080007608200110008410000200009524500720011526400490018730000310023620260717093335.0260717s2019    ii            000 0 eng d  a9788121904711  aeng04a515.331 aNarayan, Shanti10aDifferential calculus for B.A. & B. Sc. students /cNarayan, Shanti 1aNew Delhi :bS Chand and Company Ltd,c2019.  axi, 269 p. : ill. ; 24 cm.