Futrell Charles M. (2009). Fundamentals of selling: Customers for life through services (11th edition.). McGraw Hill.
Citazione stile Chigago Style (17a edizione)Futrell Charles M. Fundamentals of Selling: Customers for Life Through Services. 11th edition. Boston: McGraw Hill, 2009.
Citatione MLA (9a ed.)Futrell Charles M. Fundamentals of Selling: Customers for Life Through Services. 11th edition. McGraw Hill, 2009.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.