United States. Bureau of the Census. "October 1963," Business Conditions Digest (October 1963). https://fraser.stlouisfed.org/title/43/item/7196, accessed on April 25, 2024.
United States. Bureau of the Census. "October 1963," Business Conditions Digest (October 1963). https://fraser.stlouisfed.org/title/43/item/7196, accessed on April 25, 2024.