United States. Bureau of the Census. "Cover Page," in United States. Bureau of the Census. "January 1965," Business Conditions Digest (January 1965) : 1-1. https://fraser.stlouisfed.org/title/43/item/7211/toc/278190 , accessed on June 21, 2024.
United States. Bureau of the Census. "Cover Page," in United States. Bureau of the Census. "January 1965," Business Conditions Digest (January 1965) : 1-1. https://fraser.stlouisfed.org/title/43/item/7211/toc/278190 , accessed on June 21, 2024.