United States. Bureau of the Census. "Composite Indexes," in United States. Bureau of the Census. "July 1985," Business Conditions Digest (July 1985) : 66-66. https://fraser.stlouisfed.org/title/43/item/7467/toc/415737 , accessed on April 27, 2024.
United States. Bureau of the Census. "Composite Indexes," in United States. Bureau of the Census. "July 1985," Business Conditions Digest (July 1985) : 66-66. https://fraser.stlouisfed.org/title/43/item/7467/toc/415737 , accessed on April 27, 2024.