Cyclical Patterns from Specific Peak and Trough Levels and Specific Trough Dates
United States. Bureau of the Census. "Cyclical Patterns from Specific Peak and Trough Levels and Specific Trough Dates," in United States. Bureau of the Census. "February 1965," Business Conditions Digest (February 1965) : 70-70. https://fraser.stlouisfed.org/title/43/item/7212/toc/291735 , accessed on April 19, 2024.