Univrsity of the Philippines. (1980). Science Diliman. Office of Research Coordination University of the Philippines.
Chicago-referens (17:e uppl.)Univrsity of the Philippines. Science Diliman. Quezon City: Office of Research Coordination University of the Philippines, 1980.
MLA-referens (9:e uppl.)Univrsity of the Philippines. Science Diliman. Office of Research Coordination University of the Philippines, 1980.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.