United States. Bureau of the Census. "Rates of Change," in United States. Bureau of the Census. "May 1978," Business Conditions Digest (May 1978) : 46-46. https://fraser.stlouisfed.org/title/43/item/7381/toc/226185 , accessed on April 23, 2024.
United States. Bureau of the Census. "Rates of Change," in United States. Bureau of the Census. "May 1978," Business Conditions Digest (May 1978) : 46-46. https://fraser.stlouisfed.org/title/43/item/7381/toc/226185 , accessed on April 23, 2024.