Ferriss, T. (2008). The 4-hour workweek: Escape 9-5, live anywhere, and join the new rich. Vermilion.
Chicago (17e ed.) BronvermeldingFerriss, Timothy. The 4-hour Workweek: Escape 9-5, Live Anywhere, and Join the New Rich. London: Vermilion, 2008.
MLA (9e ed.) BronvermeldingFerriss, Timothy. The 4-hour Workweek: Escape 9-5, Live Anywhere, and Join the New Rich. Vermilion, 2008.
Let op: Deze citaties zijn niet altijd 100% accuraat.