United States. Bureau of the Census. "Rates of Change," in United States. Bureau of the Census. "May 1977," Business Conditions Digest (May 1977) : 46-46. https://fraser.stlouisfed.org/title/43/item/7369/toc/321297 , accessed on April 20, 2024.
United States. Bureau of the Census. "Rates of Change," in United States. Bureau of the Census. "May 1977," Business Conditions Digest (May 1977) : 46-46. https://fraser.stlouisfed.org/title/43/item/7369/toc/321297 , accessed on April 20, 2024.