United States. Bureau of the Census. "Composite Indexes," in United States. Bureau of the Census. "July 1982," Business Conditions Digest (July 1982) : 16-17. https://fraser.stlouisfed.org/title/43/item/7431/toc/391154 , accessed on April 23, 2024.
United States. Bureau of the Census. "Composite Indexes," in United States. Bureau of the Census. "July 1982," Business Conditions Digest (July 1982) : 16-17. https://fraser.stlouisfed.org/title/43/item/7431/toc/391154 , accessed on April 23, 2024.