Futrell, C. (1998). Fundamentals of selling: Customers for life. Boston: Irwin/McGraw-Hill.
Čikaški stil citiranjaFutrell, Charles. Fundamentals of Selling: Customers for Life. Boston: Irwin/McGraw-Hill, 1998.
MLA način citiranjaFutrell, Charles. Fundamentals of Selling: Customers for Life. Boston: Irwin/McGraw-Hill, 1998.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.