APA (7th ed.) Citation

United States National Museum. (1900). American hydroids, Part I: Plumularidae. GPO.

Chicago Style (17th ed.) Citation

United States National Museum. American Hydroids, Part I: Plumularidae. [Washington]: GPO, 1900.

MLA (9th ed.) Citation

United States National Museum. American Hydroids, Part I: Plumularidae. GPO, 1900.

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