United States. Bureau of Economic Analysis. "Economic Growth Widespread Across Metropolitan Areas in 2014 : Full Release : Advance 2014, and Revised 2001-2013 GDP-by-Metropolitan-Area Statistics, BEA 15-44,"
Bureau of Economic Analysis (BEA) News Releases
(September 23, 2015).
https://fraser.stlouisfed.org/title/6148/item/602262/content/pdf/bea_newsreleases_20150923, accessed on July 11, 2025.