Kralik, J. (2010). 365 thank yous: The year a simple act of daily gratitude changed my life. Hyperion.
Cita Chicago Style (17a ed.)Kralik, John. 365 Thank Yous: The Year a Simple Act of Daily Gratitude Changed My Life. New York: Hyperion, 2010.
Cita MLA (8a ed.)Kralik, John. 365 Thank Yous: The Year a Simple Act of Daily Gratitude Changed My Life. Hyperion, 2010.
Precaución: Estas citas no son 100% exactas.