Cita APA (7th ed.)
Futrell, C. (2002). Fundamentals of selling: Customers for life (7th ed.). Irwin/McGraw-Hill.
Cita Chicago (17th ed.)
Futrell, Charles. Fundamentals of Selling: Customers for Life. 7th ed. Boston: Irwin/McGraw-Hill, 2002.
Cita MLA (9th ed.)
Futrell, Charles. Fundamentals of Selling: Customers for Life. 7th ed. Irwin/McGraw-Hill, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.