00282nam a2200109 a 450000500170000000800410001704100080005810000180006624500390008426400380012330000110016120260717091748.0260717s2000    ii            000 0 eng d  aeng1 aSethi, Pankaj10aQuantum chemistry /cSethi, Pankaj 1aNew Delhi :bCampus books,c2000.  a304 p.