Dyfyniad APA

 Hoover, J. (2005).  How to sell to an idiot: 12 steps to selling anything to anyone.  Wiley.

Dyfyniad Arddull Chicago

 Hoover, John.  How to Sell to an Idiot: 12 Steps to Selling Anything to Anyone.  Wiley, 2005.

Dyfyniad MLA

 Hoover, John.  How to Sell to an Idiot: 12 Steps to Selling Anything to Anyone.  Wiley, 2005.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.