Cita APA (7a ed.)

Vanderkam, L. (2010). 168 hours: You have more time than you think. Portfolio.

Cita Chicago Style (17a ed.)

Vanderkam, Laura. 168 Hours: You Have More Time than You Think. New York: Portfolio, 2010.

Cita MLA (8a ed.)

Vanderkam, Laura. 168 Hours: You Have More Time than You Think. Portfolio, 2010.

Precaución: Estas citas no son 100% exactas.