APA (7th ed.) Citation

Fontaine, W. M. (1896). The Potomac formation in Virginia. Department of the Interior, United States Geological Survey.

Chicago Style (17th ed.) Citation

Fontaine, William Morris. The Potomac Formation in Virginia. Washington, D.C.: Department of the Interior, United States Geological Survey, 1896.

MLA (9th ed.) Citation

Fontaine, William Morris. The Potomac Formation in Virginia. Department of the Interior, United States Geological Survey, 1896.