United States. Bureau of the Census. "Contents," in United States. Bureau of the Census. "September 1965," Business Conditions Digest (September 1965) : 1-2. https://fraser.stlouisfed.org/title/43/item/7219/toc/380514 , accessed on April 26, 2024.
United States. Bureau of the Census. "Contents," in United States. Bureau of the Census. "September 1965," Business Conditions Digest (September 1965) : 1-2. https://fraser.stlouisfed.org/title/43/item/7219/toc/380514 , accessed on April 26, 2024.