United States. Department of Commerce. "Gross Domestic Product and Corporate Profits: First Quarter 2008 (Preliminary)|Corporate Profits: First Quarter 2008 (Preliminary), BEA 08-21,"
United States Department of Commerce News
(May 29, 2008).
https://fraser.stlouisfed.org/title/6148/item/600454, accessed on June 1, 2026.