OBAMA BARACK. (2006). AUDACITY OF HOPE. CANONGATE.
Cita Chicago (17th ed.)OBAMA BARACK. AUDACITY OF HOPE. EDINBURGH: CANONGATE, 2006.
Cita MLA (9th ed.)OBAMA BARACK. AUDACITY OF HOPE. CANONGATE, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.