Osteen, J. (2011). Every day a Friday: How to be happier 7 days a week. FaithWords.
Cita Chicago Style (17a ed.)Osteen, Joel. Every Day a Friday: How to Be Happier 7 Days a Week. New York: FaithWords, 2011.
Cita MLA (8a ed.)Osteen, Joel. Every Day a Friday: How to Be Happier 7 Days a Week. FaithWords, 2011.
Precaución: Estas citas no son 100% exactas.