United States. Bureau of the Census. "January 1979," Business Conditions Digest (January 1979). https://fraser.stlouisfed.org/title/43/item/7389, accessed on May 3, 2024.
United States. Bureau of the Census. "January 1979," Business Conditions Digest (January 1979). https://fraser.stlouisfed.org/title/43/item/7389, accessed on May 3, 2024.