Smithsonian Institution. (1929). Contributions to biology of Philippine Archipelago and adjacent regions: Bryozoa of Philippine region. GPO.
Chicago Style (17th ed.) CitationSmithsonian Institution. Contributions to Biology of Philippine Archipelago and Adjacent Regions: Bryozoa of Philippine Region. [Washington]: GPO, 1929.
MLA (9th ed.) CitationSmithsonian Institution. Contributions to Biology of Philippine Archipelago and Adjacent Regions: Bryozoa of Philippine Region. GPO, 1929.
Warning: These citations may not always be 100% accurate.