United States. Bureau of Economic Analysis. "Economic Growth Widespread Across Metropolitan Areas in 2012 : Full Release : Advance 2012, and Revised 2001-2011 GDP-by-Metropolitan-Area Statistics, BEA 13-42," Bureau of Economic Analysis (BEA) News Releases (September 17, 2013). https://fraser.stlouisfed.org/title/6148/item/601565/content/pdf/bea_newsreleases_20130917, accessed on March 19, 2025.