United States. Bureau of the Census. "January 1976," Business Conditions Digest (January 1976). https://fraser.stlouisfed.org/title/43/item/7353, accessed on April 18, 2024.
United States. Bureau of the Census. "January 1976," Business Conditions Digest (January 1976). https://fraser.stlouisfed.org/title/43/item/7353, accessed on April 18, 2024.