-. (1961). Publication of the geological survey: 1879-1961. United States Government.
Chicago Style (17th ed.) Citation-. Publication of the Geological Survey: 1879-1961. United States Government, 1961.
MLA (8th ed.) Citation-. Publication of the Geological Survey: 1879-1961. United States Government, 1961.
Warning: These citations may not always be 100% accurate.