Hoover, J. (2006). How to Sell An Idiot: 12 Steps To Selling anything to anyone. New Jersey: John Wiley & Sons.
Dyfyniad Arddull ChicagoHoover, John. How to Sell An Idiot: 12 Steps To Selling Anything to Anyone. New Jersey: John Wiley & Sons, 2006.
Dyfyniad MLAHoover, John. How to Sell An Idiot: 12 Steps To Selling Anything to Anyone. New Jersey: John Wiley & Sons, 2006.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.