Philippines. Board of Investments. (1980). Investment opportunities in the Philippines. BOI.
Cita Chicago (17th ed.)Philippines. Board of Investments. Investment Opportunities in the Philippines. Makati: BOI, 1980.
Cita MLA (9th ed.)Philippines. Board of Investments. Investment Opportunities in the Philippines. BOI, 1980.
Atenció: Aquestes cites poden no estar 100% correctes.