Percent Change for Selected Series Over Contraction and Expansion Periods of Business Cycles: 1920 to 1961
United States. Bureau of the Census. "Percent Change for Selected Series Over Contraction and Expansion Periods of Business Cycles: 1920 to 1961," in United States. Bureau of the Census. "May 1968," Business Conditions Digest (May 1968) : 82-82. https://fraser.stlouisfed.org/title/43/item/7251/toc/131268 , accessed on March 29, 2024.