Philippines. (1988). Tariff and customs code of the Philippines: Harmonized commodity description and coding system. Philippine Tariff Commission.
Citace podle Chicago (17th ed.)Philippines. Tariff and Customs Code of the Philippines: Harmonized Commodity Description and Coding System. Quezon City: Philippine Tariff Commission, 1988.
Citace podle MLA (9th ed.)Philippines. Tariff and Customs Code of the Philippines: Harmonized Commodity Description and Coding System. Philippine Tariff Commission, 1988.
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