United States. Department of Commerce. "Gross Domestic Product (GDP) by Industry for 2002 : Services-Producing Sector Leads Economic Rebound; Manufacturing Begins Recovery, BEA 03-11,"
United States Department of Commerce News
(April 17, 2003).
https://fraser.stlouisfed.org/title/6148/item/597856, accessed on June 2, 2026.