000 00277nam a2200121Ia 4500
008 221118b |||||||| |||| 00| 0 eng d
040 _cBGL
100 _aSaxena, H C
245 0 _aDifferential calculus
260 _aDelhi
_bR Chand & Co
_c1988
300 _a365p
942 _cSAF
999 _c36608
_d36608