United States. Bureau of Economic Analysis. "National Income and Product Accounts : Second Quarter 2007 GDP (Advance)|Revised Estimates: 2004 Through First Quarter 2007, BEA 07-34,"
Bureau of Economic Analysis (BEA) News Releases
(July 27, 2007).
https://fraser.stlouisfed.org/title/6148/item/598975, accessed on August 16, 2024.