United States. Bureau of the Census. "Cover Page," in United States. Bureau of the Census. "April 1962," Business Conditions Digest (April 1962) : 1-1. https://fraser.stlouisfed.org/title/43/item/7178/toc/279082 , accessed on April 25, 2024.
United States. Bureau of the Census. "Cover Page," in United States. Bureau of the Census. "April 1962," Business Conditions Digest (April 1962) : 1-1. https://fraser.stlouisfed.org/title/43/item/7178/toc/279082 , accessed on April 25, 2024.