Diffusion Indexes (Percent Rising) Over Specified Intervals for 12 Major Economic Activities
United States. Bureau of the Census. "Diffusion Indexes (Percent Rising) Over Specified Intervals for 12 Major Economic Activities," in United States. Bureau of the Census. "April 1962," Business Conditions Digest (April 1962) : 40-42. https://fraser.stlouisfed.org/title/43/item/7178/toc/279102 , accessed on April 25, 2024.