United States. Bureau of Economic Analysis. "April 1936," Survey of Current Business (April 1936). https://fraser.stlouisfed.org/title/46/item/9320, accessed on April 20, 2024.
United States. Bureau of Economic Analysis. "April 1936," Survey of Current Business (April 1936). https://fraser.stlouisfed.org/title/46/item/9320, accessed on April 20, 2024.