00312pam a2200121 a 4500020000500000041000500005082001200010100003100022245005500053250000800108260006200116300001200178  c  h  a658 .15  aHELFERT (Erich A.)eauthor  aTechniques of Financial AnalysishTextual Document  a9th  bTata McGraw-Hil Publication Company Limited . Delhic2011  aix, 457