Cita APA (7a ed.)

Jacobs, B., & Jacobs, J. (2015). Life is good: The book. National Geographic.

Cita Chicago Style (17a ed.)

Jacobs, Bert, y John Jacobs. Life Is Good: The Book. Washington, D.C.: National Geographic, 2015.

Cita MLA (8a ed.)

Jacobs, Bert, y John Jacobs. Life Is Good: The Book. National Geographic, 2015.

Precaución: Estas citas no son 100% exactas.