Callingham, M. (2004). Market intelligence: How and why organizations use market research. Kogan Page.
芝加哥风格引文Callingham, Martin. Market Intelligence: How and Why Organizations Use Market Research. London ; Sterling, Va.: Kogan Page, 2004.
MLA引文Callingham, Martin. Market Intelligence: How and Why Organizations Use Market Research. Kogan Page, 2004.
警告：这些引文格式不一定是100％准确.