APA (7th ed.) Zitazioa

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

Chicago Style (17th ed.) Zitazioa

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

MLA (9th ed.) Zitazioa

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