Complete Titles and Sources of Principal Business Cycle Series and Diffusion Indexes
United States. Bureau of the Census. "Complete Titles and Sources of Principal Business Cycle Series and Diffusion Indexes," in United States. Bureau of the Census. "November 1961," Business Conditions Digest (November 1961) : 67-68. https://fraser.stlouisfed.org/title/43/item/7173/toc/111681 , accessed on April 24, 2024.