Futrell, C. (1996). Fundamentals of selling: Customers for life (5th ed.). Irwin.
芝加哥风格引文Futrell, Charles. Fundamentals of Selling: Customers for Life. 5th ed. Chicago: Irwin, 1996.
MLA引文Futrell, Charles. Fundamentals of Selling: Customers for Life. 5th ed. Irwin, 1996.
警告：这些引文格式不一定是100％准确.