United States. Bureau of Economic Analysis. "Gross Domestic Product: First Quarter 2013 (Advance Estimate) : Highlights: GDP Growth Picks Up in the First Quarter, BEA 13-18,"
Bureau of Economic Analysis (BEA) News Releases
(April 26, 2013).
https://fraser.stlouisfed.org/title/6148/item/601542/content/pdf/bea_newsreleases_20130426_release-highlights, accessed on March 14, 2025.