United States. Bureau of Economic Analysis. "June 1966," Survey of Current Business (June 1966). https://fraser.stlouisfed.org/title/46/item/9730, accessed on April 20, 2024.
United States. Bureau of Economic Analysis. "June 1966," Survey of Current Business (June 1966). https://fraser.stlouisfed.org/title/46/item/9730, accessed on April 20, 2024.