Cita APA (7th ed.)

Futrell, C. (1999). Fundamentals of selling: Customers for life (6thed.). Irwin, McGraw-Hill.

Cita Chicago (17th ed.)

Futrell, Charles. Fundamentals of Selling: Customers for Life. 6thed. London: Irwin, McGraw-Hill, 1999.

Cita MLA (9th ed.)

Futrell, Charles. Fundamentals of Selling: Customers for Life. 6thed. Irwin, McGraw-Hill, 1999.