Buettner, D. (2021). The Blue Zones challenge: A 4-week plan for a longer, better life. National Geographic Society.
Cita Chicago Style (17a ed.)Buettner, Dan. The Blue Zones Challenge: A 4-week Plan for a Longer, Better Life. [Washington, D.C.]: National Geographic Society, 2021.
Cita MLA (8a ed.)Buettner, Dan. The Blue Zones Challenge: A 4-week Plan for a Longer, Better Life. National Geographic Society, 2021.
Precaución: Estas citas no son 100% exactas.