United States. Bureau of Economic Analysis. "January 1948," Survey of Current Business (January 1948). https://fraser.stlouisfed.org/title/46/item/9467, accessed on April 18, 2024.
United States. Bureau of Economic Analysis. "January 1948," Survey of Current Business (January 1948). https://fraser.stlouisfed.org/title/46/item/9467, accessed on April 18, 2024.