Gaya APA

Hoover, J, H, J., Sparkman, B, S, B. (2006). How to sell to an idiot : 12 steps to selling anything to anyone.-- . New Jersey: Jhon Wiley & Sons.

Gaya MLA

Hoover, Jhon, Hoover,, Jhon., Sparkman, Bill, Sparkman,, Bill. "How to sell to an idiot : 12 steps to selling anything to anyone.--". New Jersey: Jhon Wiley & Sons, 2006. Buku.