United States. Bureau of Economic Analysis. "June 2012," Survey of Current Business (June 2012). https://fraser.stlouisfed.org/title/46/item/10238, accessed on March 29, 2024.
United States. Bureau of Economic Analysis. "June 2012," Survey of Current Business (June 2012). https://fraser.stlouisfed.org/title/46/item/10238, accessed on March 29, 2024.