United States. Bureau of the Census. "Foreign Trade," in United States. Bureau of the Census. "March 1982," Business Conditions Digest (March 1982) : 88-88. https://fraser.stlouisfed.org/title/43/item/7427/toc/206832 , accessed on July 9, 2024.
United States. Bureau of the Census. "Foreign Trade," in United States. Bureau of the Census. "March 1982," Business Conditions Digest (March 1982) : 88-88. https://fraser.stlouisfed.org/title/43/item/7427/toc/206832 , accessed on July 9, 2024.