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U.S. imports, exports and tariff data, 1989 - 2001
Feenstra, Robert C., (2002)
US exports of merchandise : international harmonized system, commodity classification (HS-based schedule B) by country, by customs district
(1995)
Nuts : domestic exports, imports, reexports and not balance, quantity and value ; foreign trade of the United States annual, 1790 - 1929
Gries, Caroline G., (1930)
Does the type of exports affect the odds that an overseas office exists?
Cassey, Andrew J., (2011)
State foreign export patterns
Analyzing the export flow from Texas to Mexico
Cassey, Andrew J., (2010)