Cita APA (7a ed.)
Obama, B. (2006). The audacity of hope: Barack Obama. Three Rivers Press.
Cita Chicago Style (17a ed.)
Obama, Barack. The Audacity of Hope: Barack Obama. New York: Three Rivers Press, 2006.
Cita MLA (9a ed.)
Obama, Barack. The Audacity of Hope: Barack Obama. Three Rivers Press, 2006.
Precaución: Estas citas no son 100% exactas.