APA (7th ed.) Citation

Hay, R. (1890). A geological reconnaissance in southwestern Kansas. Department of the Interior, United States Geological Survey.

Chicago Style (17th ed.) Citation

Hay, Robert. A Geological Reconnaissance in Southwestern Kansas. Washington, D.C.: Department of the Interior, United States Geological Survey, 1890.

MLA (9th ed.) Citation

Hay, Robert. A Geological Reconnaissance in Southwestern Kansas. Department of the Interior, United States Geological Survey, 1890.