APA (7th ed.) Citation

Smithsonian Institution. (1942). Peoples of the Philippines. [s.n.].

Chicago Style (17th ed.) Citation

Smithsonian Institution. Peoples of the Philippines. [Washington]: [s.n.], 1942.

MLA (9th ed.) Citation

Smithsonian Institution. Peoples of the Philippines. [s.n.], 1942.

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