United States. Bureau of Economic Analysis. "Gross Domestic Product: Fourth Quarter 2007 (Advance) : Highlights: GDP Growth Slows Down in the Fourth Quarter, BEA 08-03,"
Bureau of Economic Analysis (BEA) News Releases
(January 30, 2008).
https://fraser.stlouisfed.org/title/6148/item/600436/content/pdf/bea_newsreleases_20080130_highlights, accessed on June 21, 2025.