Diffusion Indexes - Actual and Anticipated
United States. Bureau of the Census. "Diffusion Indexes - Actual and Anticipated," in United States. Bureau of the Census. "October 1961," Business Conditions Digest (October 1961) : 40-40. https://fraser.stlouisfed.org/title/43/item/7172/toc/299584 , accessed on April 19, 2024.