Philippines. Board of Investments. Philippine guide to foreign investors. [s.n.].
Citazione stile Chigago Style (17a edizione)Philippines. Board of Investments. Philippine Guide to Foreign Investors. Pasig, Rizal: [s.n.].
Citatione MLA (9a ed.)Philippines. Board of Investments. Philippine Guide to Foreign Investors. [s.n.].
Attenzione: Queste citazioni potrebbero non essere precise al 100%.