Wollan, R. &. O. (2013). Selling through someone else. John Wiley.
芝加哥风格引文Wollan, Robert & Others. Selling Through Someone Else. New Jersey: John Wiley, 2013.
MLA引文Wollan, Robert & Others. Selling Through Someone Else. John Wiley, 2013.
警告：这些引文格式不一定是100％准确.