Cita APA (7th ed.)
Hoover, J., & Sparkman, B. (2006). How to sell to an idiot: 12 steps to selling anything to anyone. John Wiley & Sons.
Cita Chicago (17th ed.)
Hoover, John, i Bill Sparkman. How to Sell to an Idiot: 12 Steps to Selling Anything to Anyone. Hoboken, N.J.: John Wiley & Sons, 2006.
Cita MLA (9th ed.)
Hoover, John, i Bill Sparkman. How to Sell to an Idiot: 12 Steps to Selling Anything to Anyone. John Wiley & Sons, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.