Philippines (Republic) Bureau of the Census and Statistics. Foreign trade statistics of the Philippines [microform]. University of the Philippines Library.
Cita Chicago (17th ed.)Philippines (Republic) Bureau of the Census and Statistics. Foreign Trade Statistics of the Philippines [microform]. Quezon City: University of the Philippines Library.
Cita MLA (9th ed.)Philippines (Republic) Bureau of the Census and Statistics. Foreign Trade Statistics of the Philippines [microform]. University of the Philippines Library.
Atenció: Aquestes cites poden no estar 100% correctes.