United States. Bureau of Economic Analysis. "September 1965," Survey of Current Business (September 1965). https://fraser.stlouisfed.org/title/46/item/9721, accessed on April 25, 2024.
United States. Bureau of Economic Analysis. "September 1965," Survey of Current Business (September 1965). https://fraser.stlouisfed.org/title/46/item/9721, accessed on April 25, 2024.