Dyfyniad APA
Futrell, C. (2002). Fundamentals of selling: Customers for life (7th ed.). Irwin/McGraw-Hill.
Dyfyniad Arddull Chicago
Futrell, Charles. Fundamentals of Selling: Customers for Life. 7th ed. Boston: Irwin/McGraw-Hill, 2002.
Dyfyniad MLA
Futrell, Charles. Fundamentals of Selling: Customers for Life. 7th ed. Irwin/McGraw-Hill, 2002.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.