Philippines (Republic). National Science Development Board. Office of International Science Relations. (1961). The Philippine Academy of Sciences and Humanities.
Chicago Style (17th ed.) CitationPhilippines (Republic). National Science Development Board. Office of International Science Relations. The Philippine Academy of Sciences and Humanities. [Manila, 1961.
MLA (9th ed.) CitationPhilippines (Republic). National Science Development Board. Office of International Science Relations. The Philippine Academy of Sciences and Humanities. 1961.
Warning: These citations may not always be 100% accurate.