Citazione Stile APA (7a Edizione)

Futrell, C., & Charles M. Futrell. (2009). Fundamentals of selling: Customers for life through service (11th ed.). McGraw-Hill Irwin.

Citazione stile Chigago Style (17a edizione)

Futrell, Charles, e Charles M. Futrell. Fundamentals of Selling: Customers for Life Through Service. 11th ed. Boston: McGraw-Hill Irwin, 2009.

Citatione MLA (9a ed.)

Futrell, Charles, e Charles M. Futrell. Fundamentals of Selling: Customers for Life Through Service. 11th ed. McGraw-Hill Irwin, 2009.