United States. Bureau of the Census. "Table of Contents," in United States. Bureau of the Census. "March 1979," Business Conditions Digest (March 1979) : 3-4. https://fraser.stlouisfed.org/title/43/item/7391/toc/206508 , accessed on May 4, 2024.
United States. Bureau of the Census. "Table of Contents," in United States. Bureau of the Census. "March 1979," Business Conditions Digest (March 1979) : 3-4. https://fraser.stlouisfed.org/title/43/item/7391/toc/206508 , accessed on May 4, 2024.