United States. Bureau of the Census. "Title Page," in United States. Bureau of the Census. "April 1962," Business Conditions Digest (April 1962) : 2-2. https://fraser.stlouisfed.org/title/43/item/7178/toc/279083 , accessed on May 9, 2024.
United States. Bureau of the Census. "Title Page," in United States. Bureau of the Census. "April 1962," Business Conditions Digest (April 1962) : 2-2. https://fraser.stlouisfed.org/title/43/item/7178/toc/279083 , accessed on May 9, 2024.