United States. Bureau of the Census. "Cover Page," in United States. Bureau of the Census. "July 1974," Business Conditions Digest (July 1974) : 1-1. https://fraser.stlouisfed.org/title/43/item/7335/toc/332292 , accessed on May 1, 2024.
United States. Bureau of the Census. "Cover Page," in United States. Bureau of the Census. "July 1974," Business Conditions Digest (July 1974) : 1-1. https://fraser.stlouisfed.org/title/43/item/7335/toc/332292 , accessed on May 1, 2024.