APA (7th ed.) Citation

Hough, S. E. (1999). On the modified Mercalli intensities and magnitudes of the 1811/1812 New Madrid, central United States, earthquakes. Department of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Hough, Susan Elizabeth. On the Modified Mercalli Intensities and Magnitudes of the 1811/1812 New Madrid, Central United States, Earthquakes. [Reston, Va.]: Department of the Interior, U.S. Geological Survey, 1999.

MLA (9th ed.) Citation

Hough, Susan Elizabeth. On the Modified Mercalli Intensities and Magnitudes of the 1811/1812 New Madrid, Central United States, Earthquakes. Department of the Interior, U.S. Geological Survey, 1999.