Fontaine, W. M. (1896). The Potomac formation in Virginia. Department of the Interior, United States Geological Survey.
Chicago Style (17th ed.) CitationFontaine, William Morris. The Potomac Formation in Virginia. Washington, D.C.: Department of the Interior, United States Geological Survey, 1896.
MLA (9th ed.) CitationFontaine, William Morris. The Potomac Formation in Virginia. Department of the Interior, United States Geological Survey, 1896.
Warning: These citations may not always be 100% accurate.