Philippines. Bureau of Customs. (1972). Home consumption values of base metals and articles thereof including hardware exported to the Philippines. [s.n.].
Citazione stile Chigago Style (17a edizione)Philippines. Bureau of Customs. Home Consumption Values of Base Metals and Articles Thereof Including Hardware Exported to the Philippines. Manila: [s.n.], 1972.
Citatione MLA (9a ed.)Philippines. Bureau of Customs. Home Consumption Values of Base Metals and Articles Thereof Including Hardware Exported to the Philippines. [s.n.], 1972.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.