United States. Bureau of Economic Analysis. "Personal Income and Outlays: January 2011 : Highlights: Personal Income Rises in January, BEA 11-08," Bureau of Economic Analysis (BEA) News Releases (February 28, 2011). https://fraser.stlouisfed.org/title/6148/item/604067/content/pdf/bea_newsreleases_20110228_release-highlights, accessed on March 15, 2025.