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. "December 1967," Business Conditions Digest (December 1967) : 5-5. https://fraser.stlouisfed.org/title/43/item/7246/toc/425802 , accessed on May 4, 2024.