Business Cycle Reference Dates and Duration of Expansions and Contractions in the United States: 1854-1961
United States. Bureau of the Census. "Business Cycle Reference Dates and Duration of Expansions and Contractions in the United States: 1854-1961," in United States. Bureau of the Census. "November 1961," Business Conditions Digest (November 1961) : 62-62. https://fraser.stlouisfed.org/title/43/item/7173/toc/111677 , accessed on April 25, 2024.