United States. Bureau of the Census. "Composite Indexes," in United States. Bureau of the Census. "May 1985," Business Conditions Digest (May 1985) : 66-66. https://fraser.stlouisfed.org/title/43/item/7465/toc/180675 , accessed on March 19, 2024.
United States. Bureau of the Census. "Composite Indexes," in United States. Bureau of the Census. "May 1985," Business Conditions Digest (May 1985) : 66-66. https://fraser.stlouisfed.org/title/43/item/7465/toc/180675 , accessed on March 19, 2024.