HELFERT ERICH A. (1992). TECHNIQUES OF FINANCIAL ANALYSIS. JAICO PUBLISHING HOUSE.
芝加哥风格引文HELFERT ERICH A. TECHNIQUES OF FINANCIAL ANALYSIS. MUMAI: JAICO PUBLISHING HOUSE, 1992.
MLA引文HELFERT ERICH A. TECHNIQUES OF FINANCIAL ANALYSIS. JAICO PUBLISHING HOUSE, 1992.
警告：这些引文格式不一定是100％准确.