Douglas, S. (2017). 100 things you can do to stay fit and healthy: Simple steps to better your body and improve your mind. Skyhorse Publishing.
Cita Chicago Style (17a ed.)Douglas, Scott. 100 Things You Can Do to Stay Fit and Healthy: Simple Steps to Better Your Body and Improve Your Mind. New York: Skyhorse Publishing, 2017.
Cita MLA (8a ed.)Douglas, Scott. 100 Things You Can Do to Stay Fit and Healthy: Simple Steps to Better Your Body and Improve Your Mind. Skyhorse Publishing, 2017.
Precaución: Estas citas no son 100% exactas.