United States. (1977). Customs tariff of the Philippine Islands, 1909: Notes on tariff revision. University of the Philippines Library.
Chicagoスタイル(17版)引用形式United States. Customs Tariff of the Philippine Islands, 1909: Notes on Tariff Revision. Quezon City: University of the Philippines Library, 1977.
MLA(9版)引用形式United States. Customs Tariff of the Philippine Islands, 1909: Notes on Tariff Revision. University of the Philippines Library, 1977.
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