APA (7th ed.) Citation

Geological Survey (U.S.). (1940). Shorter contributions to general geology, 1936. U.S. G.P.O..

Chicago Style (17th ed.) Citation

Geological Survey (U.S.). Shorter Contributions to General Geology, 1936. Washington, D.C.: U.S. G.P.O., 1940.

MLA (9th ed.) Citation

Geological Survey (U.S.). Shorter Contributions to General Geology, 1936. U.S. G.P.O., 1940.