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. "April 1967," Business Conditions Digest (April 1967) : 5-5. https://fraser.stlouisfed.org/title/43/item/7238/toc/360858 , accessed on April 23, 2024.