(1988). Imports under items 806.30 and 807.00 of the tariff schedules of the United States, 1984 -87. Washington: Usitic Publication.
Trích dẫn kiểu ChicagoImports Under Items 806.30 and 807.00 of the Tariff Schedules of the United States, 1984 -87. Washington: Usitic Publication, 1988.
MLA citiranjeImports Under Items 806.30 and 807.00 of the Tariff Schedules of the United States, 1984 -87. Washington: Usitic Publication, 1988.
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