Gross Domestic Product, Third Quarter 2021 (Advance Estimate) : Key Source Data and Assumptions, BEA 21-52
United States. Bureau of Economic Analysis. "Gross Domestic Product, Third Quarter 2021 (Advance Estimate) : Key Source Data and Assumptions, BEA 21-52," Bureau of Economic Analysis (BEA) News Releases (October 28, 2021). https://fraser.stlouisfed.org/title/6148/item/609981/content/xlsx/bea_newsreleases_20211028_keysourcedata, accessed on March 18, 2025.