APA (7th ed.) Citation

Ferriss, T., Schwarzenegger, A., & Geoffroi, R. (2016). Tools of titans: The tactics, routines, and habits of billionaires, icons, and world-class performers. Houghton Mifflin Harcourt.

Chicago Style (17th ed.) Citation

Ferriss, Timothy, Arnold Schwarzenegger, and Remie Geoffroi. Tools of Titans: The Tactics, Routines, and Habits of Billionaires, Icons, and World-class Performers. Boston: Houghton Mifflin Harcourt, 2016.

MLA (8th ed.) Citation

Ferriss, Timothy, et al. Tools of Titans: The Tactics, Routines, and Habits of Billionaires, Icons, and World-class Performers. Houghton Mifflin Harcourt, 2016.

Warning: These citations may not always be 100% accurate.