APA (7th ed.) Citation

Ferriss, T. (2011). The 4-Hour Workweek. Gagas Media.

Chicago Style (17th ed.) Citation

Ferriss, Timothy. The 4-Hour Workweek. Gagas Media, 2011.

MLA (8th ed.) Citation

Ferriss, Timothy. The 4-Hour Workweek. Gagas Media, 2011.

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