United States. Bureau of the Census. "Rates of Change," in United States. Bureau of the Census. "June 1976," Business Conditions Digest (June 1976) : 71-71. https://fraser.stlouisfed.org/title/43/item/7358/toc/71631 , accessed on April 19, 2024.
United States. Bureau of the Census. "Rates of Change," in United States. Bureau of the Census. "June 1976," Business Conditions Digest (June 1976) : 71-71. https://fraser.stlouisfed.org/title/43/item/7358/toc/71631 , accessed on April 19, 2024.