Dyfyniad APA

Ferriss, T. (2017). Tools of titans: The tactics, routines, and habits of billionaires, icons, and world-class performers. Boston: Houghton Mifflin Harcourt.

Dyfyniad Arddull Chicago

Ferriss, Timothy. Tools of Titans: The Tactics, Routines, and Habits of Billionaires, Icons, and World-class Performers. Boston: Houghton Mifflin Harcourt, 2017.

Dyfyniad MLA

Ferriss, Timothy. Tools of Titans: The Tactics, Routines, and Habits of Billionaires, Icons, and World-class Performers. Boston: Houghton Mifflin Harcourt, 2017.

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