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. "December 1961," Business Conditions Digest (December 1961) : 38-40. https://fraser.stlouisfed.org/title/43/item/7174/toc/311296 , accessed on May 9, 2024.