Gaya APA

Ferriss, T. (2011). The 4-hour workweek: escape 9-5, live anywhere, and join the new rich (Expanded and Updated). London: Vermilion.

Gaya MLA

Ferriss, Timothy. "The 4-hour workweek: escape 9-5, live anywhere, and join the new rich". Expanded and Updated London: Vermilion, 2011. Text.