United States. Bureau of the Census. "Foreign Trade," in United States. Bureau of the Census. "November 1976," Business Conditions Digest (November 1976) : 89-89. https://fraser.stlouisfed.org/title/43/item/7363/toc/260258 , accessed on May 7, 2024.
United States. Bureau of the Census. "Foreign Trade," in United States. Bureau of the Census. "November 1976," Business Conditions Digest (November 1976) : 89-89. https://fraser.stlouisfed.org/title/43/item/7363/toc/260258 , accessed on May 7, 2024.