Dyfyniad APA
Hoover, J., & Sparkman, B. (2006). How to sell to an idiot: 12 steps to selling anything to anyone. John Wiley & Sons.
Dyfyniad Arddull Chicago
Hoover, John, and Bill Sparkman. How to Sell to an Idiot: 12 Steps to Selling Anything to Anyone. Hoboken, N.J.: John Wiley & Sons, 2006.
Dyfyniad MLA
Hoover, John, and Bill Sparkman. How to Sell to an Idiot: 12 Steps to Selling Anything to Anyone. John Wiley & Sons, 2006.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.