United States. Bureau of the Census. "Appendixes," in United States. Bureau of the Census. "November 1975," Business Conditions Digest (November 1975) : 131-131. https://fraser.stlouisfed.org/title/43/item/7351/toc/121031 , accessed on May 2, 2024.
United States. Bureau of the Census. "Appendixes," in United States. Bureau of the Census. "November 1975," Business Conditions Digest (November 1975) : 131-131. https://fraser.stlouisfed.org/title/43/item/7351/toc/121031 , accessed on May 2, 2024.