Bagnall, N. (1996). On Shaky Ground: The New Madrid Earthquakes of 1811-1812. University of Missouri Press.
Cita Chicago Style (17a ed.)Bagnall, Norma. On Shaky Ground: The New Madrid Earthquakes of 1811-1812. Columbia: University of Missouri Press, 1996.
Cita MLA (8a ed.)Bagnall, Norma. On Shaky Ground: The New Madrid Earthquakes of 1811-1812. University of Missouri Press, 1996.
Precaución: Estas citas no son 100% exactas.