एपीए उद्धरण

Obama, B. (2007). audacity of hope: Thoughts on reclaiming the American dream. Canongate.

शिकागो स्टाइल उद्धरण

Obama, Barack. Audacity of Hope: Thoughts on Reclaiming the American Dream. Edinburgh: Canongate, 2007.

एमएलए उद्धरण

Obama, Barack. Audacity of Hope: Thoughts on Reclaiming the American Dream. Canongate, 2007.