United States. Bureau of the Census. "Rates of Change," in United States. Bureau of the Census. "April 1976," Business Conditions Digest (April 1976) : 71-71. https://fraser.stlouisfed.org/title/43/item/7356/toc/360179 , accessed on March 29, 2024.
United States. Bureau of the Census. "Rates of Change," in United States. Bureau of the Census. "April 1976," Business Conditions Digest (April 1976) : 71-71. https://fraser.stlouisfed.org/title/43/item/7356/toc/360179 , accessed on March 29, 2024.