United States. Bureau of the Census. "Cover Page," in United States. Bureau of the Census. "August 1978," Business Conditions Digest (August 1978) : 1-1. https://fraser.stlouisfed.org/title/43/item/7384/toc/52948 , accessed on May 10, 2024.
United States. Bureau of the Census. "Cover Page," in United States. Bureau of the Census. "August 1978," Business Conditions Digest (August 1978) : 1-1. https://fraser.stlouisfed.org/title/43/item/7384/toc/52948 , accessed on May 10, 2024.