000 00299nam a2200121Ia 4500
008 221001s9999 xx 000 0 eng d
082 _a491.446 CHA
100 _aChakravarty, Subodh Kumar
245 0 _aDifferential calculus
260 _aCalcutta
_bA. Mukharjee
300 _a299p.
942 _2ddc
_cBK
999 _c9759
_d9759