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. "May 1963," Business Conditions Digest (May 1963) : 75-76. https://fraser.stlouisfed.org/title/43/item/7191/toc/44419 , accessed on April 24, 2024.