Philippines (Republic) National Science Development Board. Office of International Science Relations & Philippine Academy of Sciences and Humanities. (1973). The Philippine Academy of Sciences and Hmanities [microform]. Photoduplication Service.
Цитирование в стиле Чикаго (17-е изд.)Philippines (Republic) National Science Development Board. Office of International Science Relations и Philippine Academy of Sciences and Humanities. The Philippine Academy of Sciences and Hmanities [microform]. Quezon City: Photoduplication Service, 1973.
Цитирование MLA (9-е изд.)Philippines (Republic) National Science Development Board. Office of International Science Relations и Philippine Academy of Sciences and Humanities. The Philippine Academy of Sciences and Hmanities [microform]. Photoduplication Service, 1973.