APA (7th ed.) Citation

Smithsonian Institution. (1921). Contributions to biology of Philippine Archipelago and adjacent regions: Foraminifera of Philippine and adjacent seas. GPO.

Chicago Style (17th ed.) Citation

Smithsonian Institution. Contributions to Biology of Philippine Archipelago and Adjacent Regions: Foraminifera of Philippine and Adjacent Seas. [Washington]: GPO, 1921.

MLA (9th ed.) Citation

Smithsonian Institution. Contributions to Biology of Philippine Archipelago and Adjacent Regions: Foraminifera of Philippine and Adjacent Seas. GPO, 1921.