United States. Bureau of Economic Analysis. "November 1969," Survey of Current Business (November 1969). https://fraser.stlouisfed.org/title/46/item/9787, accessed on July 9, 2024.
United States. Bureau of Economic Analysis. "November 1969," Survey of Current Business (November 1969). https://fraser.stlouisfed.org/title/46/item/9787, accessed on July 9, 2024.