Connor Tim. (2006). Ninety one Mistakes Smart Salespeople Make. Sourcebooks.
芝加哥风格引文Connor Tim. Ninety One Mistakes Smart Salespeople Make. USA: Sourcebooks, 2006.
MLA引文Connor Tim. Ninety One Mistakes Smart Salespeople Make. Sourcebooks, 2006.
警告：这些引文格式不一定是100％准确.