Obama, B. (2011). [U.S. President speaks on the occasion of a credit rating downgrade by Standard & Poor's]. Whitehouse.gov.
Chicago Style (17th ed.) CitationObama, Barack. [U.S. President Speaks on the Occasion of a Credit Rating Downgrade by Standard & Poor's]. [Washington, D.C.]: Whitehouse.gov, 2011.
MLA (9th ed.) CitationObama, Barack. [U.S. President Speaks on the Occasion of a Credit Rating Downgrade by Standard & Poor's]. Whitehouse.gov, 2011.
Warning: These citations may not always be 100% accurate.