APA (7th ed.) Citation

Obama. (2008). The audacity of hope: Thoughts on reclaiming the American Dream. Vintage Books.

Chicago Style (17th ed.) Citation

Obama. The Audacity of Hope: Thoughts on Reclaiming the American Dream. New York: Vintage Books, 2008.

MLA (8th ed.) Citation

Obama. The Audacity of Hope: Thoughts on Reclaiming the American Dream. Vintage Books, 2008.

Warning: These citations may not always be 100% accurate.