Cox, J., & Stevens, H. (2000). Selling the wheel: Choosing the best way to sell for you, your company, and your customers. Simon & Schuster.
Chicago Style aipamenaCox, Jeff, and Howard Stevens. Selling the Wheel: Choosing the Best Way to Sell for You, Your Company, and Your Customers. New York: Simon & Schuster, 2000.
MLA aipamenaCox, Jeff, and Howard Stevens. Selling the Wheel: Choosing the Best Way to Sell for You, Your Company, and Your Customers. Simon & Schuster, 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.