United States. Bureau of the Census. "Cover Page," in United States. Bureau of the Census. "October 1965," Business Conditions Digest (October 1965) : 1-1. https://fraser.stlouisfed.org/title/43/item/7220/toc/201880 , accessed on May 10, 2024.
United States. Bureau of the Census. "Cover Page," in United States. Bureau of the Census. "October 1965," Business Conditions Digest (October 1965) : 1-1. https://fraser.stlouisfed.org/title/43/item/7220/toc/201880 , accessed on May 10, 2024.