United States. Bureau of the Census. "Cover Page," in United States. Bureau of the Census. "August 1964," Business Conditions Digest (August 1964) : 1-1. https://fraser.stlouisfed.org/title/43/item/7206/toc/348288 , accessed on April 18, 2024.
United States. Bureau of the Census. "Cover Page," in United States. Bureau of the Census. "August 1964," Business Conditions Digest (August 1964) : 1-1. https://fraser.stlouisfed.org/title/43/item/7206/toc/348288 , accessed on April 18, 2024.