000 00290nam a2200121Ia 4500
008 170101s1984 xx 000 0 und d
082 _a515.33 GOE
100 _aGoel BS
245 0 _aDifference Calculus
260 _aMeerut
_bPragati Prakashan
_c1984
300 _a116 p
942 _2ddc
_cB
999 _c876266
_d876266