United States. Bureau of Economic Analysis. "State Personal Income: First Quarter 2006 : Full Release, BEA 06-28,"
Bureau of Economic Analysis (BEA) News Releases
(June 22, 2006).
https://fraser.stlouisfed.org/title/6148/item/598039/content/pdf/bea_newsrelease_20060622, accessed on June 17, 2025.