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