United States. Bureau of the Census. "Table of Contents," in United States. Bureau of the Census. "April 1983," Business Conditions Digest (April 1983) : 3-4. https://fraser.stlouisfed.org/title/43/item/7440/toc/81297 , accessed on May 5, 2024.
United States. Bureau of the Census. "Table of Contents," in United States. Bureau of the Census. "April 1983," Business Conditions Digest (April 1983) : 3-4. https://fraser.stlouisfed.org/title/43/item/7440/toc/81297 , accessed on May 5, 2024.