United States. Bureau of Economic Analysis. "September 2010," Survey of Current Business (September 2010). https://fraser.stlouisfed.org/title/46/item/10218, accessed on April 25, 2024.
United States. Bureau of Economic Analysis. "September 2010," Survey of Current Business (September 2010). https://fraser.stlouisfed.org/title/46/item/10218, accessed on April 25, 2024.