United States. Bureau of Economic Analysis. "November 1970," Survey of Current Business (November 1970). https://fraser.stlouisfed.org/title/46/item/9799, accessed on April 20, 2024.
United States. Bureau of Economic Analysis. "November 1970," Survey of Current Business (November 1970). https://fraser.stlouisfed.org/title/46/item/9799, accessed on April 20, 2024.