Dyfyniad APA

 Joyner, A. (2007).  The eBay billionaires’ club: Exclusive secrets for building an even bigger and more profitable online business.  John Wiley & Sons.

Dyfyniad Arddull Chicago

 Joyner, Amy.  The EBay Billionaires’ Club: Exclusive Secrets for Building an Even Bigger and More Profitable Online Business.  John Wiley & Sons, 2007.

Dyfyniad MLA

 Joyner, Amy.  The EBay Billionaires’ Club: Exclusive Secrets for Building an Even Bigger and More Profitable Online Business.  John Wiley & Sons, 2007.

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