HELFERT ERICH A. (2000). TECHNIQUES OF FINANCIAL ANALYSIS (10TH.). MCGRAW-HILL.
芝加哥风格引文HELFERT ERICH A. TECHNIQUES OF FINANCIAL ANALYSIS. 10TH. NEW YORK: MCGRAW-HILL, 2000.
MLA引文HELFERT ERICH A. TECHNIQUES OF FINANCIAL ANALYSIS. 10TH. MCGRAW-HILL, 2000.
警告：这些引文格式不一定是100％准确.