000 00362nam a2200157Ia 4500
008 131111s9999 xx 000 0 und d
100 _aDas,B.C.
245 _aIntegral calculus
260 _aCalcutta
260 _bU.N.Dhur
260 _c1990
300 _a464p.
500 _a(damaged 14438)
650 _aEconomics
_aCalculus
_aMathematics
763 _a7647
999 _c59638
_d59638