United States. Bureau of the Census. "Composite Indexes," in United States. Bureau of the Census. "June 1984," Business Conditions Digest (June 1984) : 16-17. https://fraser.stlouisfed.org/title/43/item/7454/toc/197695 , accessed on April 26, 2024.
United States. Bureau of the Census. "Composite Indexes," in United States. Bureau of the Census. "June 1984," Business Conditions Digest (June 1984) : 16-17. https://fraser.stlouisfed.org/title/43/item/7454/toc/197695 , accessed on April 26, 2024.