United States. Bureau of Economic Analysis. "Gross Domestic Product by Industry: Second Quarter 2016 | Annual Update: 2013 Through First Quarter 2016 : Full Release, BEA 16-59,"
Bureau of Economic Analysis (BEA) News Releases
(November 3, 2016).
https://fraser.stlouisfed.org/title/6148/item/602378/content/pdf/bea_newsreleases_20161103, accessed on June 23, 2025.