000 00265nam a2200109Ia 4500
008 220201s1963 xx 000 0 eng d
100 _aGorak Prasad
245 0 _aTb on integral calculas
260 _bAllahabad: Pottishala Ltd
_c1963
300 _a320
942 _2ddc
999 _c72012
_d72012