Dyfyniad APA

(2009). Google speaks: Secrets of the world's greatest billionaire entrepreneurs, Sergey Brin and Larry Page / Janet Lowe.

Dyfyniad Arddull Chicago

Google Speaks: Secrets of the World's Greatest Billionaire Entrepreneurs, Sergey Brin and Larry Page / Janet Lowe. 2009.

Dyfyniad MLA

Google Speaks: Secrets of the World's Greatest Billionaire Entrepreneurs, Sergey Brin and Larry Page / Janet Lowe. 2009.

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