Obama, B. (2008). The Audacity of Hope: Thoughts on Reclaiming the American dream. Conongate Books Ltd.
Citazione stile Chigago Style (17a edizione)Obama, Barack. The Audacity of Hope: Thoughts on Reclaiming the American Dream. New York: Conongate Books Ltd, 2008.
Citatione MLA (9a ed.)Obama, Barack. The Audacity of Hope: Thoughts on Reclaiming the American Dream. Conongate Books Ltd, 2008.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.