Cita APA (7a ed.)

Trapani, G., & Trapani, G. (2008). Upgrade your life: The Lifehacker guide to working smarter, faster, better (2nd ed.). Wiley Publishing, Inc.

Cita Chicago Style (17a ed.)

Trapani, Gina, y Gina Trapani. Upgrade Your Life: The Lifehacker Guide to Working Smarter, Faster, Better. 2nd ed. Indianapolis, Indiana: Wiley Publishing, Inc, 2008.

Cita MLA (9a ed.)

Trapani, Gina, y Gina Trapani. Upgrade Your Life: The Lifehacker Guide to Working Smarter, Faster, Better. 2nd ed. Wiley Publishing, Inc, 2008.