000			002840000a22001210004500
100			_a _aWidder _bDavid V.
245			_a Advanced calculus
260			_a _b _aNew Delhi _bPrentice-Hall _cIN
260			_c _a1968
300			_a _axvi, 520p.
041			_a <En>
082			_a 517/WID
650			_a <Calculus>
999			_c35997 _d35997