00290pam a2200121 a 4500020000500000041000500005082001300010100002800023245005500051250000900106260004100115300001200156 c h a658.1513 aHELFERT (Erich)eauthor aTechniques of Financial AnalysishTextual Document a6th  bUniversal Book stall New Delhic1989 aXII,458