00302nam a2200109 a 450000500170000000800410001704100080005810000200006624500590008626400390014530000080018420260717091754.0260717s2000    ii            000 0 eng d  aeng1 aHarper, Charlie10aIntroduction to Mathematical Phycis /cHarper, Charlie 1aNew Delhi :bPrintics Hall,c2000.  a301