Philippines. Bureau of Customs. (1972). Home consumption values of chemicals and drugs exported to the Philippines. [s.n].
Citação norma ChicagoPhilippines. Bureau of Customs. Home Consumption Values of Chemicals and Drugs Exported to the Philippines. Manila: [s.n], 1972.
Citação norma MLAPhilippines. Bureau of Customs. Home Consumption Values of Chemicals and Drugs Exported to the Philippines. [s.n], 1972.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.