United States. Bureau of Economic Analysis. "May 1925," Survey of Current Business (May 1925). https://fraser.stlouisfed.org/title/46/item/10282, accessed on December 6, 2023.
United States. Bureau of Economic Analysis. "May 1925," Survey of Current Business (May 1925). https://fraser.stlouisfed.org/title/46/item/10282, accessed on December 6, 2023.