United States. Department of Commerce. "Services and Goods Sectors Both Strong Despite Slowdown in 2005 : Advance Estimates of Gross Domestic Product (GDP) by Industry, BEA 06-16,"
United States Department of Commerce News
(April 27, 2006).
https://fraser.stlouisfed.org/title/6148/item/598027, accessed on June 11, 2026.