Silva, P. A. d. (2005). The role of importers and exporters in the determination of the U.S. tariff preferences granted to Latin America. World Bank.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSilva, Peri Agostinho da. The Role of Importers and Exporters in the Determination of the U.S. Tariff Preferences Granted to Latin America. Washington, D.C: World Bank, 2005.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSilva, Peri Agostinho da. The Role of Importers and Exporters in the Determination of the U.S. Tariff Preferences Granted to Latin America. World Bank, 2005.
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