COOPER DONALD R. (2009). BUSINESS RESEARCH METHODS. TATA MCGRAW-HILL.
芝加哥风格引文COOPER DONALD R. BUSINESS RESEARCH METHODS. NEW DELHI: TATA MCGRAW-HILL, 2009.
MLA引文COOPER DONALD R. BUSINESS RESEARCH METHODS. TATA MCGRAW-HILL, 2009.
警告：这些引文格式不一定是100％准确.