National Research Council of the Philippines. Research Library & Information Division & Abarquez, R. F. (1982). NRCP directory 1981. National Research Council of the Philippines.
Cita Chicago (17th ed.)National Research Council of the Philippines. Research Library & Information Division i Ramon F. Abarquez. NRCP Directory 1981. Taguig: National Research Council of the Philippines, 1982.
Cita MLA (9th ed.)National Research Council of the Philippines. Research Library & Information Division i Ramon F. Abarquez. NRCP Directory 1981. National Research Council of the Philippines, 1982.
Atenció: Aquestes cites poden no estar 100% correctes.