United States. Bureau of the Census. "Cyclical Indicators," in United States. Bureau of the Census. "June 1982," Business Conditions Digest (June 1982) : 12-14. https://fraser.stlouisfed.org/title/43/item/7430/toc/56296 , accessed on April 23, 2024.
United States. Bureau of the Census. "Cyclical Indicators," in United States. Bureau of the Census. "June 1982," Business Conditions Digest (June 1982) : 12-14. https://fraser.stlouisfed.org/title/43/item/7430/toc/56296 , accessed on April 23, 2024.