United States. Department of Commerce. "Personal Income and Outlays: August 2011 : Tables, BEA 11-50," United States Department of Commerce News (September 30, 2011). https://fraser.stlouisfed.org/title/6148/item/604110/content/xls/bea_newsreleases_20110930_tables-onlyexcel, accessed on June 18, 2026.