United States. Bureau of the Census. "Method of Presentation," in United States. Bureau of the Census. "May 1982," Business Conditions Digest (May 1982) : 7-11. https://fraser.stlouisfed.org/title/43/item/7429/toc/209990 , accessed on May 11, 2024.
United States. Bureau of the Census. "Method of Presentation," in United States. Bureau of the Census. "May 1982," Business Conditions Digest (May 1982) : 7-11. https://fraser.stlouisfed.org/title/43/item/7429/toc/209990 , accessed on May 11, 2024.