University of the Philippines System & Angara, E. J. (1987). The president's valedictory report, 1981-87: University of the Philippines. Office of the President.
Citace podle Chicago (17th ed.)University of the Philippines System a Edgardo J. Angara. The President's Valedictory Report, 1981-87: University of the Philippines. Quezon City: Office of the President, 1987.
Citace podle MLA (9th ed.)University of the Philippines System a Edgardo J. Angara. The President's Valedictory Report, 1981-87: University of the Philippines. Office of the President, 1987.
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