United States. Bureau of Economic Analysis. "Merchandise Trade in the Fourth Quarter and Year 1972 : Balance of Payments Basis, BEA 73-5,"
Bureau of Economic Analysis (BEA) News Releases
(January 24, 1973).
https://fraser.stlouisfed.org/title/6148/item/597037, accessed on March 22, 2025.
@FedFRASER