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. "March 1968," Business Conditions Digest (March 1968) : 82-82. https://fraser.stlouisfed.org/title/43/item/7249/toc/113835 , accessed on April 23, 2024.