COOPER D R. (2000). BUSINESS RESEARCH METHODS (6TH.). TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED.
芝加哥风格引文COOPER D R. BUSINESS RESEARCH METHODS. 6TH. NEW DELHI: TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 2000.
MLA引文COOPER D R. BUSINESS RESEARCH METHODS. 6TH. TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 2000.
警告：这些引文格式不一定是100％准确.