National Research Council of the Philippines. Research Library & Information Division & Abarquez, R. F. (1981). NRCP directory 1981. The Council.
Citace podle Chicago (17th ed.)National Research Council of the Philippines. Research Library & Information Division a Ramon F. Abarquez. NRCP Directory 1981. Bicutan, Taguig, Metro Manila: The Council, 1981.
Citace podle MLA (9th ed.)National Research Council of the Philippines. Research Library & Information Division a Ramon F. Abarquez. NRCP Directory 1981. The Council, 1981.
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