United States. Bureau of the Census. "Cover Page," in United States. Bureau of the Census. "January 1976," Business Conditions Digest (January 1976) : 1-1. https://fraser.stlouisfed.org/title/43/item/7353/toc/52443 , accessed on May 9, 2024.
United States. Bureau of the Census. "Cover Page," in United States. Bureau of the Census. "January 1976," Business Conditions Digest (January 1976) : 1-1. https://fraser.stlouisfed.org/title/43/item/7353/toc/52443 , accessed on May 9, 2024.