United States. Bureau of Economic Analysis. "Personal Income and Outlays: June 2009 : Revised Estimates: 1929 Through May 2009, BEA 09-34,"
Bureau of Economic Analysis (BEA) News Releases
(August 4, 2009).
https://fraser.stlouisfed.org/title/6148/item/600683, accessed on July 11, 2025.