United States. Bureau of the Census. "Table of Contents," in United States. Bureau of the Census. "July 1963," Business Conditions Digest (July 1963) : 5-6. https://fraser.stlouisfed.org/title/43/item/7193/toc/295621 , accessed on May 10, 2024.
United States. Bureau of the Census. "Table of Contents," in United States. Bureau of the Census. "July 1963," Business Conditions Digest (July 1963) : 5-6. https://fraser.stlouisfed.org/title/43/item/7193/toc/295621 , accessed on May 10, 2024.