APA (7th ed.) Citation

Geological Survey (U.S.). (1969). Geological survey research 1969. U.S. G.P.O..

Chicago Style (17th ed.) Citation

Geological Survey (U.S.). Geological Survey Research 1969. Washington: U.S. G.P.O., 1969.

MLA (9th ed.) Citation

Geological Survey (U.S.). Geological Survey Research 1969. U.S. G.P.O., 1969.

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