Tables - Customs Operations
United States. Department of the Treasury. "Tables - Customs Operations," in United States. Department of the Treasury. "Annual Report of the Secretary of the Treasury on the State of the Finances, Fiscal Year 1980 : Statistical Appendix," Annual Report of the Secretary of the Treasury on the State of the Finances (Fiscal Year Ended September 30, 1980) : 422-426. https://fraser.stlouisfed.org/title/194/item/5627/toc/330493 , accessed on April 18, 2024.