APA-referens (7:e uppl.)

Philippines (Republic). Board of Investments. (1973). Foreign investments. s.n.

Chicago-referens (17:e uppl.)

Philippines (Republic). Board of Investments. Foreign Investments. [Pasig, Rizal: s.n, 1973.

MLA-referens (9:e uppl.)

Philippines (Republic). Board of Investments. Foreign Investments. s.n, 1973.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.