United States. Department of Commerce. "State Quarterly Personal Income, 1st Quarter 2006-4th Quarter 2009; State Annual Personal Income, 2009 (Preliminary Estimate), BEA 10-10,"
United States Department of Commerce News
(March 25, 2010).
https://fraser.stlouisfed.org/title/6148/item/601142, accessed on May 31, 2026.