National Research Council of the Philippines. Research Library & Information Division & Abarquez, R. F. (1981). NRCP directory 1981. The Council.
芝加哥风格引文National Research Council of the Philippines. Research Library & Information Division 与 Ramon F. Abarquez. NRCP Directory 1981. Bicutan, Taguig, Metro Manila: The Council, 1981.
MLA引文National Research Council of the Philippines. Research Library & Information Division 与 Ramon F. Abarquez. NRCP Directory 1981. The Council, 1981.
警告：这些引文格式不一定是100％准确.