APA (7th ed.) Citation

Smithsonian Institution. (1939). Sponges collected on Presidential cruise of 1938. [s.n.].

Chicago Style (17th ed.) Citation

Smithsonian Institution. Sponges Collected on Presidential Cruise of 1938. [Washington]: [s.n.], 1939.

MLA (9th ed.) Citation

Smithsonian Institution. Sponges Collected on Presidential Cruise of 1938. [s.n.], 1939.

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