United States. Department of Commerce. "State Quarterly Personal Income, 1st Quarter 2008-4th Quarter 2011 | State Annual Personal Income, 2011 (Preliminary Estimate), BEA 12-10,"
United States Department of Commerce News
(March 28, 2012).
https://fraser.stlouisfed.org/title/6148/item/601324, accessed on June 1, 2026.