Schiffman, S. (2008). The 25 sales habits of highly successful salespeople (3rd ed.). Adams Media.
芝加哥风格引文Schiffman, Stephan. The 25 Sales Habits of Highly Successful Salespeople. 3rd ed. Avon, Mass.: Adams Media, 2008.
MLA引文Schiffman, Stephan. The 25 Sales Habits of Highly Successful Salespeople. 3rd ed. Adams Media, 2008.
警告：这些引文格式不一定是100％准确.