APA (7th ed.) Citation

Smithsonian Institution. (1944). 27-day period in Washington precipitation. [s.n.].

Chicago Style (17th ed.) Citation

Smithsonian Institution. 27-day Period in Washington Precipitation. [Washington]: [s.n.], 1944.

MLA (9th ed.) Citation

Smithsonian Institution. 27-day Period in Washington Precipitation. [s.n.], 1944.

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