Cross-Classification of Business Indicators by Economic Process and Cyclical Timing
United States. Bureau of the Census. "Cross-Classification of Business Indicators by Economic Process and Cyclical Timing," in United States. Bureau of the Census. "July 1968," Business Conditions Digest (July 1968) : 7-7. https://fraser.stlouisfed.org/title/43/item/7253/toc/409151 , accessed on April 19, 2024.