APA (7th ed.) Citation

U.S. Coast and Geodetic Survey. (1942). United States Earthquakes, 1940. [s.n.].

Chicago Style (17th ed.) Citation

U.S. Coast and Geodetic Survey. United States Earthquakes, 1940. [Washington]: [s.n.], 1942.

MLA (9th ed.) Citation

U.S. Coast and Geodetic Survey. United States Earthquakes, 1940. [s.n.], 1942.