United States. Bureau of Economic Analysis. "April 1923," Survey of Current Business (April 1923). https://fraser.stlouisfed.org/title/46/item/10257, accessed on June 25, 2024.
United States. Bureau of Economic Analysis. "April 1923," Survey of Current Business (April 1923). https://fraser.stlouisfed.org/title/46/item/10257, accessed on June 25, 2024.