Cita APA (7a ed.)
Hassler, W. W. (2010). The first day at Gettysburg: Crisis at the crossroads. University of Alabama Press.
Cita Chicago Style (17a ed.)
Hassler, Warren W. The First Day at Gettysburg: Crisis at the Crossroads. Tuscaloosa, Ala.: University of Alabama Press, 2010.
Cita MLA (9a ed.)
Hassler, Warren W. The First Day at Gettysburg: Crisis at the Crossroads. University of Alabama Press, 2010.
Precaución: Estas citas no son 100% exactas.