United States. Bureau of Economic Analysis. "Growth in Goods and Services Industries Slowed in 2011 : Highlights: Growth in Goods and Services Industries Slowed in 2011 : Revised Statistics of Gross Domestic Product by Industry for 2009-2011, BEA 12-51,"
Bureau of Economic Analysis (BEA) News Releases
(November 13, 2012).
https://fraser.stlouisfed.org/title/6148/item/601364/content/pdf/bea_newsreleases_20121113_highlights, accessed on June 23, 2025.