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. "May 1967," Business Conditions Digest (May 1967) : 5-5. https://fraser.stlouisfed.org/title/43/item/7239/toc/401971 , accessed on May 10, 2024.