APA (7th ed.) Citation

Gagelonia, P. A. (1963). The Philippine national flag. s.n.].

Chicago Style (17th ed.) Citation

Gagelonia, Pedro A. The Philippine National Flag. [Manila: s.n.], 1963.

MLA (9th ed.) Citation

Gagelonia, Pedro A. The Philippine National Flag. s.n.], 1963.

Warning: These citations may not always be 100% accurate.