Cita APA (7a ed.)

Vanderkam, L., & London, E. (2010). 168 hours: You have more time than you think (Unabridged.). Gildan Media Corp.

Cita Chicago Style (17a ed.)

Vanderkam, Laura, y Elizabeth London. 168 Hours: You Have More Time than You Think. Unabridged. Rego Park: Gildan Media Corp, 2010.

Cita MLA (8a ed.)

Vanderkam, Laura, y Elizabeth London. 168 Hours: You Have More Time than You Think. Unabridged. Gildan Media Corp, 2010.