UNCTAD Secretariat. (1985). Tariff and non-tariff measures in the world trade of building materials. United Nations Industrial Development Organization.
Chicago Style (17. basım) AtıfUNCTAD Secretariat. Tariff and Non-tariff Measures in the World Trade of Building Materials. Vienna: United Nations Industrial Development Organization, 1985.
MLA (9th ed.) AtıfUNCTAD Secretariat. Tariff and Non-tariff Measures in the World Trade of Building Materials. United Nations Industrial Development Organization, 1985.
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