United States. Bureau of the Census. "Title Page," in United States. Bureau of the Census. "August 1966," Business Conditions Digest (August 1966) : 2-2. https://fraser.stlouisfed.org/title/43/item/7230/toc/310747 , accessed on April 19, 2024.
United States. Bureau of the Census. "Title Page," in United States. Bureau of the Census. "August 1966," Business Conditions Digest (August 1966) : 2-2. https://fraser.stlouisfed.org/title/43/item/7230/toc/310747 , accessed on April 19, 2024.